（单词翻译:单击）
Unit 3 虚拟语气(二)
4. It is important that the hotel receptionist _____ that guests are registered1 correctly.
A. has made sure
B. must make sure
C. made sure
D. make sure
5. It was essential that the application forms _____ back before the deadline.
A. must be sent
B. be sent
C. would be sent
D. were sent
6. It's necessary _____ the dictionary immediately.
A. that he will return
B. that he return
C. that he returned
D. that he has to return
答案：
4. D
译文：旅馆接待员必须确保旅客登记正确，这点是很重要的。
本句涉及主语从句中的虚拟语气的使用。
5. B
译文：申请表务必在截止日期之前寄回。
本句涉及主语从句中的虚拟语气的使用。
6. B
译文：他必须马上归还字典。
本句涉及主语从句中的虚拟语气的使用。
