See the flag on top of the building?That was__ we did this morning.

分类: 作业答案 • 2022-01-09 18:02:15

问题描述：

See the flag on top of the building?That was__ we did this morning.
A when
B which
C where
D what

答

看到那楼顶的旗子了吗?那就是我们今天早上做的事.
所以用what