It is required that every student _ a foreign language before going abroad.
来源:百度知道 编辑:UC知道 时间:2024/09/21 01:36:35
A.learn
B.learns
C.will learn
D.should have learnt
答案是 A
为啥?
B.learns
C.will learn
D.should have learnt
答案是 A
为啥?
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
(should) learn
省略了should
答案是A,因为省略了SHOULD。
在要求,命令,请求语气的句中用谓语为SHOULD+动词原形,而SHOULD一般可以省略。
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