2. It is very expensive. We can't buy it.(合并為一句）

It is      expensive for us      buy.

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根據(jù)短文內(nèi)容，填寫(xiě)表格。

The Three R's

1     

OPut our lunches in reusable boxes. O Don't 2      food.

O Write on both sides of pieces of paper.

3     

O Reuse your bags，for example，use them to collect cans for 4      .

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Recycle

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1.__________ 2._______  3._________

4.________  5._________

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閱讀短文，選擇最佳選項(xiàng)。

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B.   cow waste

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