题目内容

If they don’t understand it the first time, go over it again ______ they do.

A. when
B. after
C. since
D. until

查看答案

搜索结果不匹配？点我反馈

更多问题

He found at last ______ he had been looking for.

A. that
B. what
C. where
D. which

提高我的成绩怎样才能呢

越大雪越下了

可爱她女儿特别长得