高等继续教育 / 统考英语B
正确率:统考%
题型描述: 单选题
A. that; what
B. when; what
C. that; that
D. when; that
It was not until dark ______ he found ______ he thought was the correct way to solve the problem.
A. that; what
B. when; what
C. that; that
D. when; that
参考答案: