语法与词汇
So confused _____ that he didn’t know how to start his lecture.
A、
since he became
B、
that he became
C、
would he become
D、
did he become
【正确答案】
D
【答案解析】
句意：他如此困惑，以至于不知如何开始自己的讲座。考查状语从句用于倒装结构，so…that引导结果状语从句，so如果置于句首，则主句中的主谓语需要倒装，that从句不用倒装。因此，本题的正确答案为D。
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