1 Go upstairs____the second floor.
2 Please follow the direction _____ the pop music.
3 The shop is far away ____ the park.
4 Eating too much is bad____ your health.
5 Help yourself _____ some fish.
6 He studied _____ his math exam.
7 The weekend is a mixture _____ fun and work.
8 They are bored _____ the film.
9 Susan is amazed _____ her math teacher.
10 _____example ,he can sing,dance,tell jokes and so_____.
11 The city has five thousand years_____history.
12 I found a boy crying _____ the corner _____ the museum.
13 Discuss the best place _____ a vacation _____ your parents.
13 _____ fact,I don't like Beijing Opera.
14 Crying is _____ girls .
15 I asked some people _____ fashion.
16 I showed some pictures _____ the students.
17 I enjoyed your "what's cool?"article _____the school magezine.
18 I enjoy nice words _____ my study.
19 Don't run _____ the hallway.
20 Don't go out _____ school night.
21 Please wear sneakers _____ gym class.
22 I have to be _____ bed _____ ten o'clock.