It has been five years ____________ I came to this school.A．forB．sinceC．whetherD_刷题宝

题干

It has been five years ____________ I came to this school.

A．for

B．since

C．whether

D．when

上一题下一题 0.85难度单选题更新时间:2018-10-08 10:01:21

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