Have you ever been to Shenzhen?----Yes,I ____there fours months a_其他解答

Have you ever been to Shenzhen?----Yes,I ____there fours months ago.
A.have been
B.have gone
C.went
D.was going
为什么正确答案是C,其他的都不可以,请大家帮我辨析下谢谢哈

人气：476 ℃　时间：2019-08-20 18:09:58

解答

因为有four months ago 时态基本确定
have been 和 have gone 都不能用因为有一个固定的时间点就不能用have been 而have gone 表示去了还没回来更不对
was going 时态不对