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1. I hope we can have more events like this   (raise) money.

5. We should keep the clavSsroom   (clean) every day.

4. — What is one of the   (big) problems in the world today?

--Pollution.

3. We are going to organize a lot of   (activity) during the Environment Week.

2. Don’t be afraid. This kind of operation is   (harm) to your health.

1.   (luck) , we weren’t late for the train.

10. Don’t  (造成) us too many problems.

9. Give me the necessary information but keep it  (簡(jiǎn)單的).

8. They should do a   (調(diào)查) before building a new supermarket here.

7. We need rich  (土壤) to grow vegetables.