题目内容

【题目】看图回答问题。

1. -What can we do to keep our city clean?

- We can take the___________ to school.

2. -What can we do to keep the air clean?

- We can ___________.

3. -What can we do to keep our city clean?

- We can move some ___________ away from our city.

4. -What makes our city dirty?

- ___________ from cars makes the air dirty.

5. -What can we do to keep the river clean?

- We can put the rubbish in the ___________.

【答案】1.school bus 2. plant trees 3. factories 4. Smoke 5. bin

【解析】

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