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Question 53

Laboratory rules require every visitor to wear eye protection. Every visitor is ___ wear it inside the robotics laboratory.

  1. suppose to
  2. supposed toCorrect answer
  3. used to
  4. use to

Explanation

The construction be supposed to expresses an expectation or requirement, so supposed retains its final d. Suppose to omits the participial form required after is.

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Question 53: Laboratory rules require every visitor to wear eye… · Commonly Confused English Words · Questena