Difficulty: Easy
Correct Answer: Your shoes need to be cleaned properly.
Explanation:
Concept/ApproachWith "need", form the passive infinitive: "need to be + past participle". The object "your shoes" becomes the subject.
EvaluationCorrect: "Your shoes need to be cleaned properly."(a), (d) Misassigned subject and awkward semantics.(b) Changes meaning: suggests the person is required, not the action on the shoes.
Final AnswerYour shoes need to be cleaned properly.
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