It is important that the hotel receptionist __________ that guests are registered correctly. ( 章节：8 难度：3)
- A、has made sure
- B、made sure
- C、must make sure
- D、make sure
正确答案:D
答案解析:有
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It is important that the hotel receptionist __________ that guests are registered correctly. ( 章节：8 难度：3)
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