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

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

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.

试题答案

D

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。