题目内容
【题目】-- How long ________ since our School founded “Wechat Group”?
-- For eight months .We carried it out in March.
A. was it B. has been it C. is it
【答案】C
【解析】
试题分析:句意:--自从我们学校成立微信群已经多久了?it is/has been+时间段+since +自……来….多久了,是固定结构。因为是疑问语序,所以选C。
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