It is necessary that we ______ have a good command of English at college.

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问题 It is necessary that we ______ have a good command of English at college.

选项 A、must
B、have to
C、should
D、ought to

答案C

解析 本题测试虚拟语气的用法。在“It is + necessary + that”从句中,一般情况下,从句的谓语动词都要用“should+动词原形”, should也可省去。因此,C为正确答案。本句的意思是:“我们有必要在大学学好英语。”
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