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 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。