Выберите в скобках правильный вариант модального глагола.
1. The fridge is full, so we ... (must not/ needn`t) go shopping.

2. Our employees ... (can/must) sign this agreement.

3. We ... (may/ought to) reserve a table in advance if we want to have dinner there.

4. I ... (can`t/needn`t) believe it!! You ... (have to/must) be joking.

пожалуйста нужен 100% ответ.