1、Both his parents look sad .Maybe they _________what's happened _英语解答

1、Both his parents look sad .Maybe they _________what's happened to him .（呼和浩特）
A.knew B.have known C.must know D.will know 选哪一个?

人气：230 ℃　时间：2019-08-22 15:43:23

解答

B
其他代进去都不通丫...
他的父母看上去都很伤心,好像已经知道他发生了什么事