Ответ:

6. Circle the correct option.

  1. You mustn't / don't have to copy in the exam! It's not permitted.
  2. I've never took / taken a taxi.
  3. I'm not / won't be angry if you don't buy me a present this year.
  4. Could / Should you play the violin when you were five?
  5. You don't have to / mustn't load the dishwasher. I've done it.
  6. I have to / should get up early because the exam is at 8 am!