题目内容
I had travelled only two hours one day _____ the winds increased so much that I had to put my tent up ____ the winds became too strong.
A. when; before B. then; but C. while; because D. but; before
A
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题目内容
I had travelled only two hours one day _____ the winds increased so much that I had to put my tent up ____ the winds became too strong.
A. when; before B. then; but C. while; because D. but; before
A