Not until ,the diffiult problem.A. did he return;we settledB. he returned;we settledC. did

发布时间：2020-08-16 22:53:14

Not until     ,    the diffiult problem.
A. did he return;we settled
B. he returned;we settled
C. did he return,did we settle
D. he returned;did we settle.

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A. did he return;we settled
B. he returned;we settled
C. did he return,did we settle
(答案→)D. he returned;did we settle.
解析：本题考查倒装。Not until位于句首时，主句要用部分倒装，但until后的从句不倒装。
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