Question

ПОЖАЛУЙСТА! ПОМОГИТЕ!
Выберите подходящий модальный глагол.
1) I’m going to the theatre tonight. What (should / must) I wear?
2) You (mustn’t / needn’t) touch the dog. It’s dangerous.
3) It’s a secret. You (mustn’t) tell anyone what I said.
4) You (shouldn’t / needn’t) wash up. Mother has done it.
5) Do you think I (have to / should) learn another foreign language?
6) You (needn’t / shouldn’t) play computer games so much.

Answer 1

1) should
2) mustn't
3) mustn't (не написали другой вариант, но предполагаю, что там было shouldn't)
4) needn't / don't need to (needn't - более строгая форма)
5) should
6) shouldn't