---Whose book is this?---It________ be Ning’s because it has her name on it.A．m
题型：不详难度：来源：
---Whose book is this?
---It________ be Ning’s because it has her name on it.| A．must | B．can’t | C．might | D．could |
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答案
| A |
解析
试题分析：句意：这是谁的书？肯定是宁的书，因为上面写着她的名字。Must在表推测的时候，表示肯定；can’t 不可能；might和could都表可能。结合题意选A。 |
举一反三
| Dick speak Chinese? _ Yes, but he can’t speak it well. |
—Isn’t that Ann’s husband over there?
---No, it _______be him. I’m sure he doesn’t wear glasses.| A．can’t | B．mustn’t | C．won’t be | D．may not |
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---- Have you ________ Tim to go with us"?
---- No. He wants to but he ________ care for his sister because his parents are busy.| A．regretted; should | B．persuaded; has to | | C．contacted, likes to | D．introduced; needs to |
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---Be polite . You _____ talk to the old like that ! ---Sorry , I won’t .| A． needn’t | B． wouldn’t | C． mustn’t | D． couldn’t |
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—Yes, of course you _______. | A．Could; could | B．Must; can | C．Could; can | D．Can; could |
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