1. Shall I make the final choice right now? No, you ...
| a. mustn’t | c. needn’t |
| b. can’t | d. couldn’t |
2. Must we hurry? - No, you ..., we have so much time.
| a. can’t | c. needn’t |
| b. may not | d. won’t |
3. According to the rules of the library you .... keep the books for a fortnight.
| a. may | c. needn’t |
| b. must | d. need |
4. It was still light and I ... to hurry.
| a. hadn’t | c. had |
| b. didn’t | d. have |
5. We mustn’t climb the mountain, ... we?
| a. can | c. mustn’t |
| b. can’t | d. must |