1. (2018·连云港模拟) 选词填空

Mistake…for;    find out;    prepare …for;    be in hospital ;  polite ;   knock on the door;    carry out ;     keep…in order;   separate into;    direct

1. （1） It is very impolite to enter a room without .
3. （2） After learning the good manners, he behaves much at the table.
5. （3） Li Lei with his classmatesthe coming monthly exam these days.
7. （4） the rubbish  different groups is a good way to save energy.
9. （5） Lily always  for her twin sister Lily when they were young.
11. （6） The bags are those . We should give them back.
13. （7） The policemen the murderer of the case recently.
15. （8） Your books are all over the place. It is necessary all your things  Mary.
17. （9） The young girl was seriously burnt and she  for two weeks.
19. （10） It's said that a survey about students' favorite starsin our school soon