Not until it was completely dark________working.A、had they stoppedB、they stoppe

游客2023-10-22  29

问题 Not until it was completely dark________working.

选项 A、had they stopped
B、they stopped
C、they didn’t stop
D、did they stop

答案 D

解析 直到天完全黑了,他们才停止工作。倒装结构题。本题考查not until倒装句型,not until位于句首时,主句中主谓部分要倒装,从句使用了一般过去时,主句也应使用一般过去时,故选D项。
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