---Could you please come to the museum with me this afternoon?---Sorry, I _____
题型：不详难度：来源：
---Could you please come to the museum with me this afternoon?
---Sorry, I ______ . I have to take a piano lesson at 2 pm.| A．couldn’t | B．mustn’t | | C．can’t | D．needn’t |
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答案
| C |
解析
试题分析：句意：—今天下午你能和我去博物馆吗？—对不起，我不能。我在两点要上钢琴课。此题文句中could只是表示委婉语气，并不是过去式，所以根据句意此题选C。 |
举一反三
You _________ drive on when the traffic light is red.| A．can’t | B．needn’t | | C．mustn’t | D．may not |
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To make our city more beautiful, rubbish _________ into the river.| A．needn’t be thrown | B．can’t thrown | | C．mustn’t be thrown | D．may not thrown |
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---Must I finish my homework now ? ---No, you ________| A．shouldn’t | B．mustn’t | | C．needn’t | D．can’t |
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—Whose shirt is this?
—It ______ be Li Lei’s. It is too big for him.| A．could | B．must | | C．might | D．can’t |
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Teenagers _______ allowed to drive in the street．| A．should not be | | B．should be not | | C．not should be | | D．shouldn’t |
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