1、on

( 1 ) 在------上面 The book is on the desk.

( 2 ) 在------（哪一天/星期）What do you do on Wednesday?

( 3 ) 在------（月、日）My birthday is on August 2nd.

2、in

（1）在------里面 The pens are in the pencil-box.

（2）在------（哪一年/月） His birthday is in October. He wor ked here in 1992.

（3） 在------（地方） He works in Dongguan.

（4）在------之内 What are you going to do in 20 years?

（5） 在------（早上、下午、晚上） I do morning exercises in the morning every day. I usually play basketball in the afternoon. I often do my homework in the evening.

3、at

（1）在------（点钟） I usually go to school at 8:00 am.

（2）在中午 at noon

4、under 在------底下 There is a ball under the bed.

5、 near 在------附近 There is a book shop near our school.

6、in front of 在------前面 A boy is standing in front of the house.

7、 beside 在------旁边 A football is beside thedoor.

8、on the right 在------右边 The hospital is on the right.

9、before 在……之前 Mike sits before me.

10、after 在------以后 He went home after school.

11、in the middle 在------中间 The road is in the middle.

12、 from 来自 I am from China. = I come from China.

13、 behind 在------后面 There is a broom behind the door.

14、next to 紧挨着 There is a bus station next to No. 13 Middle School.

15、over 在------正上方 A bridge is over the river.

16、 on the left 在------左边 The bookstore is on the left.

17、To

（1）到。Take your sportshoes to the P.E class.

（2）致。Happy birthday to you. Give it to your friend.