When was it _____ your parents took you to Hangzhou?A．beforeB．ifC．which D．that_刷题宝

题干

When was it _____ your parents took you to Hangzhou?

A．before

B．if

C．which

D．that

上一题下一题 0.64难度单项选择更新时间:2013-12-30 09:19:27

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