Only when    to explain  thereasonfor this.A.didhestart;she realizedB.hestarted;

Only when    to explain  thereasonfor this.A.didhestart;she realizedB.hestarted;

题型:不详难度:来源:
Only when    to explain  thereasonfor this.
A.didhestart;she realizedB.hestarted;didsherealize
C.didhe start;she hadrealizedD.hestarted;hadsherealized

答案
B
解析
考查倒装句。Only放在句首且强调状语时,后面的主句要使用部分倒装句。本题中的when he started to explain是一个时间状语从句。结合句意可知B正确。句意:只有当他开始解释的时候她才意识到这个的原因。
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