填空题The guest paid (little) ____ money than he should for the room.
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单选题The young man lost his job last month, but it wasn’t long _____ he found a new position in my company.A beforeB whileC asD after
单选题An international flight passenger should check in at least _____.A 20 minutes before departureB 30 minutes before departureC 45 minutes before departureD 60 minutes before departure
填空题(____)收寄日戳;(____)单位名称
填空题The fast (develop) ____ of the local economy has caused serious water pollution in this region.
填空题(____)禁止停车;(____)禁止掉头
填空题Why should you follow the directions carefully when using the machine?To use the washing machine ____.