题目内容
It is essential that these application forms ______ back as early as possible
- A.must be sent
- B.will be sent
- C.are sent
- D.be sent
D
考查虚拟语气。 It is essential that + 从句,从句用should + V原形的虚拟语气,should可以省略,选D。
考查虚拟语气。 It is essential that + 从句,从句用should + V原形的虚拟语气,should可以省略,选D。
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