题干

---- 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
上一题 下一题 0.65难度 单项选择 更新时间:2019-05-12 11:16:28

答案(点此获取答案解析)