Don't have the students _all day.A.study B.studying C.to study D.studied
问题描述：
Don't have the students _all day.A.study B.studying C.to study D.studied
为什么选B能否答疑一下
答
选B
have sb do/doing sth
而后面的时间状语all day表示的是持续的状态,所以用studying