It is essential that every laboratory technician ______ protective goggles and gloves while handling volatile chemical reagents.

Answer and explanation

Correct answer: D. wear

  1. Step 1: Recognize mandative subjunctive: The structure 'It is essential that...' requires a subjunctive clause with the base form of the verb.
  2. Step 2: Regardless of the singular subject 'every technician', the bare subjunctive form is 'wear'.
Answer
wear.
Why not the others: 'wears' is third-person singular indicative; 'wore' is past tense; 'wearing' is a non-finite participle.

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