we should Keep our classroom ---A.cleaned B.clean C.cleaning D.to clean说说原因
问题描述：
we should Keep our classroom ---A.cleaned B.clean C.cleaning D.to clean说说原因
答
A.cleaned B.clean C.cleaning D.to clean 3.I don
答
B 形容词作状语 A勉强也对
答
we should Keep our classroom ---A.cleaned B.clean C.cleaning D.to clean
选 B.
keep sth clean 保持.干净, 它是个固定的结构.
keep the classroom clean and tidy
keep your hands dry