___the students claen their classroom every day?A.Do B.Dose C.Is D.Are 为什么选A啊= =英语高手来.
问题描述：
___the students claen their classroom every day?A.Do B.Dose C.Is D.Are 为什么选A啊= =英语高手来.
答
由every day 可知本句是一般现在时 排除C,D
然后students是复数,所以就选A了