Answer Key

Test

Fill in the missing modal verbs.
  1. Have you got any string? - - - Well, there  [should] be some in the kitchen drawer. Try the top shelf on the right. 
  2. It  [can't, cannot] be a bird! It's too small. Perhaps an insect, right? 
  3. Have you noticed that Jane wears something yellow every day? - - - I know. She  [must]like yellow. 
  4. Where's Susan? She is not usually late. She  [must] have forgotten we were supposed to meet at 2 pm. 
  5. The results were completely wrong. As a scientist, she  [ought] to have planned the experiment more carefully. 
  6.  [mustn't, can't, shouldn't] eat so much. I'm [supposed] to be on a diet. 
  7. You'd  [better] reply to him as soon as possible. He's a hot shot in the company. 
  8. You  [should, ought to] have sent the letter last week. Now it's too late. 
  9. It  [may, might] rain tomorrow. I personally don't really believe it. But the weather forecast said it is possible. 
  10. Janet is a great girl. She's an interesting person to talk to. You  [must, should] meet her!