---- The woman biologist stayed in Africa studying wild animals for 13 years before she returned.
---- Oh, dear! She _______ a lot of difficulties!
A．may go throughB．might go through
C．ought to have gone throughD．must have gone through
D
檢查考生對(duì)情態(tài)動(dòng)詞表示判斷的掌握和運(yùn)用能力。首先，對(duì)過去發(fā)生事情的判斷用情態(tài)動(dòng)詞+完成形式；其次，ought to have done 表示“本應(yīng)該……”，即事情沒有做，所以不符合語(yǔ)境。must have done 表示“肯定……”。
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