题目内容
It is necessary for teachers to the new ideas and developments in education.
A.keep up with B.come up with
C.catch up with D.put up with
![](http://thumb.zyjl.cn/images/loading.gif)
|
题目内容
It is necessary for teachers to the new ideas and developments in education.
A.keep up with B.come up with
C.catch up with D.put up with
|