It is required that every student _ a foreign language before going abroad.

分类: 作业答案 • 2021-12-30 12:49:28

问题描述：

It is required that every student _ a foreign language before going abroad.
A.learn
B.learns
C.will learn
D.should have learnt
为啥?

答

是虚拟语气
require的从句中用should do表示虚拟
should可以省略
所以用动词原形