（而事实上没做）；would have done只能用于虚拟语气。 7.(07江苏22)

—She looks very happy.She

have passed the exam.

D.might

—I guess so.It’

s not difficult after all.A.should 答案 C

B.could

C.must

解析 must have passed the exam肯定是通过考试了，由前句中的“happy”和下句中的“not difficult after all” 可以推知。 8.(07山东32)

They two free tickets to Canada，otherwise they’d never have been able to afford to go. A.had got 答案 B

解析 “otherwise they’d never have been able...”这一句用了与过去事实相反的虚拟语气；而“他们弄到了两张去加拿大的免费票”却是事实，故用一般过去时。 9.(06湖北31) off.

fired，your health care and other benefits will not be immediately cut

B.got

C.have got

D.get

A.Would you be

you be 答案 B

B.Should you be C.Could you be D.Might

解析 句意为：如果你被炒了，你的医疗保险和其他利益并不会立即取消。与将来事实相反的假设，从 句用答案B项。 10.(06山东30)

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May I smoke here?

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