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Itwasnotuntildark

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問題詳情:

Itwasnotuntildark

It was not until dark_____ he found _____ he thought was the correct way to solve the problem. 

A.that, that           B.when, what         C.when, that             D.that, what   

【回答】

D

知識點:未分類

題型:選擇題