It is vital that we act out at once to protect the environment.A. wouldB. shouldC. willD.

发布时间：2020-08-17 11:29:38

It is vital that we      act out at once to protect the environment.
A. would
B. should
C. will
D. can

网友回答

A. would
(答案→)B. should
C. will
D. can
解析：It is vital/important/strange/necessary/natural…that 从句中，从句运用should跟动词原形。
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