Пожалуйста срочно надо

Question

Пожалуйста срочно надо

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Answer 1

1) mustn’
2) dont have to
3) can’t

Answer 2

1. You musn't eat in the classroom. It's not allowed!
2. Students don't have to take the rubbish out. The cleaners will do it.
3. You can't enter the building after 10 o'clock. The entrance is closed.