Question

Mustn't or don't have to? Underline the correct verb form. 1) You mustn't/don't have to tell Tom what I told you. It's a secret. 2) The museum is free. You mustn't/don't have to pay to get in. 3) Children mustn't/don't have to tell lies. 4) You mustn't/don't have to play with matches. They're dangerous. 5) This is my favorite pen. You can borrow it, but you mustn't/don't have to lose it.

Answer 1

1mustn't
2don't have to
3mustn't
4mustn't
5mustn't

Answer 2

Вот подробный ответ на ваш вопрос. Mustn't или don't have to? Подчеркните правильную форму глагола.

1) You mustn't/don't have to tell Tom what I told you. It's a secret. 2) The museum is free. You mustn't/don't have to pay to get in. 3) Children mustn't/don't have to tell lies. 4) You mustn't/don't have to play with matches. They're dangerous. 5) This is my favorite pen. You can borrow it, but you mustn't/don't have to lose it.

Разница между mustn't и don't have to заключается в том, что mustn't означает, что что-то запрещено или недопустимо, а don't have to означает, что что-то необязательно или не требуется. Например:

- You mustn't smoke on buses. (Курить в автобусах запрещено.) - You don't have to smoke on buses. (Вы не обязаны курить в автобусах.)

Mustn't используется только для настоящего или будущего времени, а don't have to может использоваться и для прошедшего времени. Например:

- You mustn't forget to call me tomorrow. (Вы не должны забыть позвонить мне завтра.) - You didn't have to call me yesterday. (Вам не нужно было звонить мне вчера.)