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--- The woman biologist stayed in Africa studying wild animals for 13 years befo

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--- The woman biologist stayed in Africa studying wild animals for 13 years befo

(2005·江苏)

--- The woman biologist stayed in Africa studying wild animals for 13 years before she returned.

--- Oh, dear! She ________ a lot of difficulties!

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A.may go throughB.might go throughC.ought to have gone throughD.must have gone through

试题答案

答案:D