Multiple choice 1. A: You are ill. You _____ in the balcony. It isn't warm outside. B: I'm wearing warm clothes. Don't worry. A) needn't sit B) can sit C) must sit D) mustn't sit 2. A: I don't want to leave my phone at the desk before I enter the exam hall. _____? B: Unfortunately, yes. It is the rule. A) Can I B) Must I C) May I D) Could I 3. A: You _____ wash those strawberries. I've already washed them. B: Oh, good. Thank you. A) needn't B) must C) couldn't D) can