题目内容
It is necessary that the problem ______ at once.
A.solves B. should solve C. will be solved D. be solved
D
虚拟从句中省略了should。
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题目内容
It is necessary that the problem ______ at once.
A.solves B. should solve C. will be solved D. be solved
D
虚拟从句中省略了should。
|