题目内容：

1.People should put leaves of trees into ________.

A. B. C. D.

2.Which kind of waste is the most harmful to public health and the soil?

A.Residual waste. B.Hazardous waste. C.Recyclable waste. D.Household food waste.

3.You may read the above table from a ________.

A.story book B.medicine report C.science magazine D.daily newspaper