JAMB Use of English 1983 Question 70

Question 70

Tenses

Choose the expression or word which best completes the sentence: He has only ordered some lettuce and tea. He________ on a diet. He is a bit too fat.

  1. A.can't be
  2. B.needn't be
  3. C.must be
  4. D.mustn't be
  5. E.shouldn't be
Show the answer and explanation

Answer: C (must be)

Explanation

Ordering only lettuce and tea is evidence, so the speaker deduces 'he must be on a diet'.