题目内容
7. Does everybody know the (important) of protecting the environment?
7. importance
5. 像玻璃、塑料等东西被分进不同的组，然后回收利用。
Things like glass and plastic.
2. Noise pollution has (导致)a lot of trouble.
() 8. The energy from the sun,wind and water little.
A. pays B. costs C. takes D. spends
2. Boys and girls will be (分开) into two groups.
() 6. In the old days,the workers were often made over ten hours day.
A. work B. working C. to work D. works
3. We should do what we can (keep) our city clean.
4. Don’t walk on the grass,or the keeper will (罚款) you ten yuan.
() 4. — How soon all the work ? — In a week.
A. will;complete B. is;going to complete
C. is;going to be completed D. are;completed
