Question

【题目】完成句子。

根据句意，用适当的情态动词(can/ought to/need/must/have to)的适当形式填空。

【1】One ________ cross the street against the red light.

【2】His mother is ill, so he________ take care of her.

【3】—I have to stay at home preparing my lessons.

—But you ________ . Tomorrow is Sunday.

【4】Mike’s father is ill, but you ________ tell him, because he is to take an important examination.

【5】—It ________ be that naughty boy crying outside.

—It ________ be him, because he has gone to school.

【6】—________ I finish the task right now?

—Yes, you________.

【7】You were out enjoying yourself when you ________ have been studying.

【8】If you are busy now, you don’t ________ come with us.

Answer 1

【答案】

【1】ought not to/mustn’t

【2】has to

【3】needn’t/don’t have to

【4】mustn’t

【5】must; can’t

【6】Must; must

【7】ought to

【8】have to

【解析】略