Only after they had discussed the matter for several hours ___________ a decision.A.they reachedB.did they reachC.they reachD.do they reach
Only after they had discussed the matter for several hours ___________ a decision.
A.they reached
B.did they reach
C.they reach
D.do they reach
B.did they reach
C.they reach
D.do they reach
参考解析
解析：本句中only后接的是after引导的条件状语从句。only提前时，主句部分倒装；结合本句的时态可知，B项正确。
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