---Have you found your book yet? ---No. I’m not sure where I ___it.A．leaveB．had
题型：不详难度：来源：
---Have you found your book yet?
---No. I’m not sure where I ___it.| A．leave | B．had left | C．could have left | D．was to leave |
|
答案
| C |
解析
| could have done “本能做某事实际没做”句意：你找到你的书了吗？没有。我不确定我能把它放哪？ |
举一反三
Swimming alone ___be ____dangerous. Do be careful.| A．need; highly | B．may; high | C．can; highly | D．can; high |
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— How could I thank you enough?
—Don’t mention it. Any other man_________ that.| A．must do | B．could do | C．would have done | D．should have done |
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一Professor Li, ______the student start at once or wait a while?
一At once. |
One thing’s for sure, the fire _____by some cigarette butts. | A．might cause | B．could have caused | | C．must have been caused | D．should be caused |
|
Don’t worry. You _______ have the tickets for the games.| A．should | B．shall | C．must | D．may |
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