Only when the European countries’ financial system broke down to take measures to deal with those problems. A．did they decide B．they decided C．they had decided D．had they decided 题目和参考答案——青夏教育精英家教网—

题目内容

Only when the European countries’ financial system broke down_____ to take measures to deal with those problems.

A．did they decide

B．they decided

C．they had decided

D．had they decided

【答案】

【解析】考查倒装句。only+when引导的状语从句提前，主谓应部分倒装。排除B、C; 有根据broken down，可知应用过去时，故答案为A。

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