1. Listen and tick or cross
　1)　　　　　　　　2)　　　　　　　　3) 4)
　　　　　　　　　　　　　　　　　　　　　　　　　　

2. Read and circle
　1) There is | was a new dining hall in my school ten years ago.
　2) There was | were many trees behind my house last month.
　3) There is | are a bed and two end tables in my own room.
　4) I usually go | went to school by bike.
　5) People can't | couldn't use the Internet in 1949.

3. Look, read and write
　　　　　　
At that time Now
　　　 　　　
　　take is was eat are go
1) At that time, there ________ only a few (一些) cars in the street, but now there ________ lots of cars.
2) At that time, many people ________ at home, but now many people ________ in the restaurant.
3) At that time, people ________ shopping in the small shop, but now, many people ________ shopping in the supermarket or in the shopping mall(商场).
4) At that time, people ________ pictures with a camera(相机), but now, many people ________ pictures with a cell phone.
5) At that time, the water ________ dirty in the river, but now it ________ clean.