——She looks very happy. She       have passed the exam.    ——I guess so. It’s n

——She looks very happy. She       have passed the exam.    ——I guess so. It’s n

题型:不详难度:来源:
——She looks very happy. She       have passed the exam.    
——I guess so. It’s not difficult after all. 
A.shouldB.couldC.mustD.might

答案
C
解析

试题分析:句意为:她看上去很高兴,一定是通过了考试。因为前面她很开心了,所以推断她肯定是通过了考试了,因为这个推断的可能性比较大,所以用must have done“过去一定做了”,could have done本可以做却没有做,might have done过去可能做了…,所以选C。
举一反三
… Come to supper with us, Peter.
… Great! I _______ bring a bottle of wine.
A.willB.canC.mayD.must

题型:不详难度:| 查看答案
(2013·成都一诊)The chairman ________ hold office for five years according to the constitution.
A.might B.could
C.needD.shall

题型:不详难度:| 查看答案
(2013·安徽师大附中高三七模)Don"t use water to put out the fire if oil catches fire. As is known, oil ________ float on water.
A.shallB.must
C.mayD.will

题型:不详难度:| 查看答案
He______ his work, otherwise, he wouldn’t be enjoying himself by the seaside.
A.must have completedB.should have completed
C.ought to completeD.must complete

题型:不详难度:| 查看答案
China’s word,tuhao,which caught the attention of the dictionary’s editing team,__________ be in next year’s Oxford English Dictionary.
A.mustB.needC.dareD.may

题型:不详难度:| 查看答案
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