---- Can I watch TV now? ---- No, you ________. You _______ do your homework fir
题型：不详难度：来源：
---- Can I watch TV now?
---- No, you ________. You _______ do your homework first.| A．can’t; can’t | B．can’t; must | C．mustn’t; can’t | D．needn’t; must |
|
答案
| B |
解析
| 此题考查情态动词的基本用法。can’t不能； must必须，一定；mustn’t禁止；needn’t不必。句意：我现在能看电视了吗？——不，你不能。你必须首先做作业。故选B。 |
举一反三
People ______always be careful with fire， or it can be dangerous.| A．can | B．needn’t | C．must | D．shouldn’t |
|
—I saw Helen in the library this morning.
—No, it _________ her. She moved to France last week.
A. can’t be B. can be C. mustn’t be |
—Must I do my homework now, Mum?
—_______. You can do it tomorrow.| A．No, you needn’t | B．No, you mustn’t | C．Yes, you need | D．Yes, you must |
|
— Jim study hard these days?
—Yes, he will (将) take an exam (考试) next week.| A．Is, have to | B．Does, have to | C．Can, have to | D．Does, has to |
|
--- Another cup of coffee?
---No. thanks. I _____ be off. Marry is waiting for me. |
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