问题
选择题
It was not until dark _____ he found _____ he thought was the correct way to solve the problem. [ ]
A. that; what
B. that; that
C. when; what
D. when; that
答案
答案：A
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It was not until dark _____ he found _____ he thought was the correct way to solve the problem. [ ]
A. that; what
B. that; that
C. when; what
D. when; that
答案：A