问题
一 The woman biologist stayed in Africa studying wildlife for 13 years before she returned to her country. — Oh, dear! She _____a lot of difficulties.[ ]
A: may go through
B: might go through
C: must have gone through
D: ought to have gone through
B: might go through
C: must have gone through
D: ought to have gone through
正确答案是：
同类题型
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ou have any problems when you _____ thisjob— Well, I’m considering the salary and workingconditions
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