(solve as per the direction given above)

The sentence reads: "He loved none but his neighbour's daughter." Let's break it down to identify any grammatical error:

1. Option A - He loved:
   • This part is grammatically correct. The subject "He" and the verb "loved" are properly used in the past tense.
2. Option B - none but:
   • The phrase "none but" is grammatically correct and commonly used to mean "only" or "nothing but." It works fine in this context.
3. Option C - his neighbour's daughter:
   • This part is also grammatically correct. It correctly refers to the daughter belonging to the neighbour, using the possessive form "neighbour's."
4. Option D - No error:
   • There are no grammatical errors in the sentence. All parts are correctly structured.
5. Final Answer:
   • The sentence is free of errors, so the correct answer is D. No error.

The sentence reads: "Neither he nor his father is interested in joining the party." Let's break it down to identify any grammatical error:

1. Option A - Neither he:
   • This part is grammatically correct. "Neither" is correctly used with the subject "he," and there is no error here.
2. Option B - nor his father is interested:
   • This part also has no issue, but it is important to note that when "neither...nor" is used, the verb should agree with the noun closest to it. In this case, "his father" is the closest subject, which is singular, so the singular verb "is" is correct.
3. Option C - in joining the party:
   • This part is grammatically correct. "In joining the party" is a proper prepositional phrase that fits well with the rest of the sentence.
4. Option D - No error:
   • There is no error in any part of the sentence. It is grammatically correct.
5. Final Answer:
   • The sentence is free of errors, so the correct answer is D. No error.

The sentence reads: "At the end of the year, every student who had done adequate work was automatically promoted." Let's break it down to identify any grammatical error:

1. Option A - At the end of the year:
   • This part of the sentence is grammatically correct. The prepositional phrase "At the end of the year" is properly structured and fits the sentence well.
2. Option B - every student who had done adequate work:
   • This part is also correct. "Every student" is a singular subject, and the relative clause "who had done adequate work" is appropriately used to modify it.
3. Option C - was automatically promoted:
   • This part is grammatically correct. The verb "was" correctly agrees with the singular subject "every student."
4. Option D - No error:
   • There are no grammatical errors in any part of the sentence. The sentence is correctly structured and conveys the intended meaning clearly.
5. Final Answer:
   • The sentence is free of errors, so the correct answer is D. No error.

The sentence reads: "Since it was his first election campaign, the candidate was confused; none could clearly understand either the principles he stood for or the benefits he promised." Let's break it down to identify any grammatical error:

1. Option A - Since it was his first election campaign, the candidate was confused:
   • This part is grammatically correct. The sentence begins with a correct causal structure "Since it was his first election campaign" and the main clause "the candidate was confused" is also fine.
2. Option B - none could clearly understand:
   • This part is also correct. The use of "none" as the subject is grammatically fine here, and the sentence is clear and structurally correct.
3. Option C - either the principles he stood for or the benefits he promised:
   • This is where the error lies. When using "either... or" in a sentence, the verb that follows should agree with the noun closer to it. Since "principles" is plural, the verb should be "could clearly understand" and should be followed by "either the principles he stood for or the benefits he promised," which is grammatically correct.
   • The phrase "either the principles he stood for or the benefits he promised" should correctly be "either the principles he stood for or the benefits he promised" without changing the verb.
4. Option D - No error:
   • There is an error in Option C with the structure of "either... or," but the rest of the sentence is correct.
5. Final Answer:
   • The error is in Option C. The correct answer is C.

The sentence reads: "Many times the news has been published in the papers that the end of the world will be certain if a nuclear war breaks out." Let's break it down to identify any grammatical error:

1. Option A - Many times the news has been published:
   • This part is grammatically correct. The phrase "many times" is acceptable when referring to something that happens repeatedly in the past, and the verb tense "has been published" is also correct in this context.
2. Option B - in the papers that the end of the world will be certain:
   • The phrase "the end of the world will be certain" is awkwardly phrased. The word "certain" here doesn't work well with the structure of the sentence. A better construction would be "the end of the world is certain" or "it is certain that the end of the world will come," making the sentence more logical and fluent.
3. Option C - if a nuclear war breaks out:
   • This part is grammatically correct. The conditional clause "if a nuclear war breaks out" is properly structured.
4. Option D - No error:
   • There is an error in Option B with the phrasing of "the end of the world will be certain." Therefore, Option D is not correct.
5. Final Answer:
   • The error is in Option B. The correct answer is B.

The sentence reads: "The President had hardly spoken a few words when the microphone stopped functioning." Let's break it down to identify any grammatical error:

1. Option A - The President had hardly spoken:
   • This part is grammatically correct. "Had hardly spoken" is properly used in the past perfect tense to indicate an action that occurred before another action in the past.
2. Option B - a few words:
   • This part is also correct. "A few words" is a proper noun phrase and fits logically with the verb "spoken."
3. Option C - when the microphone stopped functioning:
   • This part is correct. The use of "when" is appropriate here because it shows the time when the microphone stopped functioning, following the past perfect tense.
4. Option D - No error:
   • There are no grammatical errors in the sentence. All parts are correctly structured.
5. Final Answer:
   • The sentence is free of errors, so the correct answer is D. No error.

The sentence reads: "The presumption that the average investor does not understand or take interest in the affairs of the company is not correct." Let's break it down to identify any grammatical error:

1. Option A - The presumption that the average investor does not understand:
   • This part is grammatically correct. The subject "The presumption" is followed by the noun clause "that the average investor does not understand," which is fine in terms of structure and tense.
2. Option B - or take interest in the affairs of the company:
   • This part is also correct. The conjunction "or" properly connects "understand" and "take interest" in a parallel structure, indicating two actions the average investor is presumed not to do.
3. Option C - is not correct:
   • This part is correct. The verb "is" agrees with the subject "The presumption," and the phrase "is not correct" is properly used to negate the statement made in the sentence.
4. Option D - No error:
   • There are no grammatical errors in any part of the sentence. The sentence is well-constructed and clear.
5. Final Answer:
   • The sentence is free of errors, so the correct answer is D. No error.

The sentence reads: "Every motorist knows road signs---whether symbols or colour codes--- have an immediacy that neither the spoken nor the written word can match." Let's break it down to identify any grammatical error:

1. Option A - Every motorist knows:
   • This part is grammatically correct. The subject "Every motorist" is followed by the verb "knows," and there is no error in this part.
2. Option B - road signs---whether symbols or colour codes--- have an immediacy:
   • This part contains an error. The subject "road signs" is plural, so the verb "have" is correctly used. However, there should be a comma or dash after "colour codes" for clarity, and "have" is correctly placed here. There seems to be a minor punctuation error, but no grammar error in verb usage.
3. Option C - that neither the spoken nor the written word can match:
   • This part is grammatically correct. The structure of "neither...nor" is used correctly, and the phrase "can match" is also fine in this context.
4. Option D - No error:
   • The sentence is almost correct except for some punctuation issues in Option B. The sentence structure itself is grammatically correct, so Option D is not fully correct.
5. Final Answer:
   • The error is related to punctuation, which affects clarity, but grammatically the sentence is correct in verb agreement. The correct answer is B.

The sentence reads: "After leaving his office, he went directly to a restaurant." Let's break it down to identify any grammatical error:

1. Option A - After leaving his office:
   • This part is grammatically correct. "After leaving his office" is a well-formed introductory phrase, and it properly sets the time context for the main action.
2. Option B - he went directly:
   • This part is also grammatically correct. The subject "he" is followed by the verb "went," and the adverb "directly" is correctly used to modify the verb.
3. Option C - to a restaurant:
   • This part is correct. "To a restaurant" is a proper prepositional phrase indicating the destination of the action.
4. Option D - No error:
   • There are no grammatical errors in the sentence. All parts are correctly structured and clear.
5. Final Answer:
   • The sentence is free of errors, so the correct answer is D. No error.

The sentence reads: "He was in a hurry because he had an appointment with the company's director." Let's break it down to identify any grammatical error:

1. Option A - He was in a hurry:
   • This part is grammatically correct. "He was in a hurry" is a clear and properly structured sentence with correct subject-verb agreement.
2. Option B - because he had an appointment:
   • This part is also grammatically correct. The conjunction "because" introduces the reason, and "he had an appointment" is well-constructed with proper past tense usage.
3. Option C - with the company's director:
   • This part is correct as well. The prepositional phrase "with the company's director" properly indicates who the appointment was with. The possessive form "company's" is used correctly.
4. Option D - No error:
   • There are no grammatical errors in the sentence. All parts are correct and logically structured.
5. Final Answer:
   • The sentence is free of errors, so the correct answer is D. No error.