Question

单选题]1.It is necessary that a college student ________ at least a foreign

单选题]1.It is necessary that a college student ________ at least a foreign language.
A. masters
B. should master
C. mastered
D. will master

Answer 1

答案是B
以下形容词（多表示说话人的强烈主观色彩）可以用虚拟语气：
A)better, important, necessary, right, natural, reasonable, fair, just, essential(绝对需要的), vital(极其重要的), etc.
B)surprising, strange, amazing, annoying, curious, odd(奇怪)，ridiculous(荒谬), , etc. (整个句子表示出乎意料的惊讶)

句型为It is + 形容词+that + sb. (should) do sth. should可以省略

Answer 2

.It is necessary that 从句用虚拟语气
should + 动词原形 should 可以省略
望采纳！祝学习进步！

Answer 3

选B

Answer 4

A

Answer 5

B