English grammar – Spot the error (choose the part with an error or “No error”). Sentence: No country can long endure / if its foundations / were not laid deep / in the material prosperity.

Difficulty: Easy

Correct Answer: were not laid deep

Explanation:

Introduction / Context:This sentence tests tense and mood consistency in a conditional-like statement of general truth. Identify the fragment that conflicts with the modal “can.”

Given Data / Assumptions:

  • The main clause uses present-time general truth: “can long endure.”
  • The if-clause should align with a general condition, not a specific past-time event.
  • Prepositional phrase “in material prosperity” is acceptable though “on” is also common with “foundations.”

Concept / Approach:With “can” in a timeless truth, the conditional clause should take present form: “if its foundations are not laid deep …” Using “were” suggests a mismatched past narrative. Therefore Part C is erroneous.

Step-by-Step Solution:

A: “No country can long endure” — correct modal + base verb.B: “if its foundations” — introduces the conditional subject; fine.C: “were not laid deep” — wrong for general truth; should be “are not laid deep” or “have not been laid deep.”D: “in the material prosperity.” — article “the” is optional and often dropped; not the key error.

Verification / Alternative check:

Corrected: “No country can long endure if its foundations are not laid deep in material prosperity.”

Why Other Options Are Wrong:

Only C violates tense–mood consistency; A, B, and D are acceptable in exam usage.

Common Pitfalls:

Mixing a general-truth main clause with a past-tense conditional; over-focusing on minor prepositional preferences.

Final Answer:were not laid deep

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