Who sits behind you No one ______.A.sits B.do C.is D.doesA和D 选哪个,为什么.
问题描述：
Who sits behind you No one ______.
A.sits B.do C.is D.does
A和D 选哪个,为什么.
答
选d
答
D does 替代sits，避免重复。
答
选D,does就代替了sits,就不重复了
答
B