when did you come here?____since we landed here.A.it has been two_英语解答

when did you come here?____since we landed here.
A.it has been two days B.it was two days 选什么?为什么?
为什么？

人气：201 ℃　时间：2019-09-29 16:08:55

解答

A （It is/ has been +一段时间+since +从句（过去时）.固定句型‘自从……以来,……了’）自从我们登陆这里已经两天了.