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问题: 倒装结构35

Until those problems are solved, _________ what
kind of disaster will strike.
A. no one can say B. can no one say
C. can say no one D. can someone say
请详细写出的解题过程和思路。

解答:

与rain商榷:我认为应选择A. 只有Not until...放在句首时才要把主句中的情态动词CAN放到主语前面,而Until...是不需要的.