—What's in the box? —_____ some milk. A.They are B.It is C.There is D.There are不能选B吗正确答案应该是C问一下为什么不能选B
问题描述：
—What's in the box? —_____ some milk. A.They are B.It is C.There is D.There are
不能选B吗
正确答案应该是C
问一下为什么不能选B
答