[答案]D
21.(2011·济南质检)Sally looks very happy. She ________ have got the first place in the 200metre race.
A. should
B. could
C. must
D. might
[解析]本题考查“情态动词+have done”。句意:Sally 看上去很高兴。她200米赛跑肯定得第一名了。should have done,“本应该干而事实上没干”;could have done 有两层含义:一表示过去可能干过;二表示过去本能够干某事(而事实上没干);must have done“过去肯定干过”;might have done 亦有两层含义:一表示过去或许干过;二表示过去本可以干某事(而事实上没干);由语境可知C项正确。
[答案]C
22.(2011·温州十校期末联考)—Show me your permit, please.
—Oh, it's not in my pocket. It ________.
A. might fall out
B. could fall out
C. should have fallen out
D. must have fallen out
[解析]句意:—请出示许可证。—噢,不在我口袋里。肯定是掉出来了。由语境可知,fall out 动作应发生在过去,因为现在许可证不在口袋里,故应用“情态动词+have done”,排除A、B两项;should have done“本应该干某事(而事实上没干)”,不符合句意;故正确答案为D项,指“过去肯定干过”。
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