题目内容
( ) 5. To protect trees,we shouldn't use paper towels (纸巾)
napkins.
A. or B. and C. but D. with
5. A
3. 空气污染
1. Killing animals is very (残酷的) ，so people must stop doing that.
3. 将来
5. You'd better take your own bags when (购物) .
5. We must do something to save the wild animals. (改为同义句)
Something must to save the wild animals.
6. put sth. to good use
( ) 4. The table is made wood and paper is made wood,too.
A. from;from B. of;of C. from;of D. of;from
7. The farmer has (sell) all his vegeta bles.
