题目内容
2. 纸巾
2. paper napkins
1. 自从那时起
2. 在国外学习
3. 属于
4. 过去常常做某事
3. cancel the plan
2. 在中国南部
5. The car is so expensive that I can't (买得起) it.
2. 这条河过去是如此的干净，但是现在河底满是垃圾。
The river so clean,but now the bottom of it rubbish.
2. The boys are (骑) their bikes around the streets.
( ) 4. is helpful to our environment.
A. Cutting down trees B. Killing animals
C. Stopping riding in cars D. Recycle paper
10. bring back
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