问题
选择题
They urged that the library_______ open during the vacation.
A．must be kept
B．is kept
C．would be kept
D．be kept
答案
答案：D
考察虚拟语气。Urge后面的宾语从句使用should+动词原形；should可以省略。故D正确。
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They urged that the library_______ open during the vacation.
A．must be kept
B．is kept
C．would be kept
D．be kept
答案：D
考察虚拟语气。Urge后面的宾语从句使用should+动词原形；should可以省略。故D正确。