31. A water in rivers

- Dẫn chứng: It comes from household chemicals, the amount of water people use and the waste people produce and throw away.

32. D use products again and again

- Dẫn chứng: First, we need to recycle, which allows products to be used agan and again.

33. A fully use the washing machine

- Dẫn chứng: Cả đoạn 3 trong bài

34. B waste can be recycled and reused

- Dẫn chứng: Đoạn 4 trong bài

35. C recycling

- Dẫn chứng: Recycling can also reduce the number of trees cut down to produce paper products. It ....

$\color{black}{1A}$

→ $\color{black}{Thông}$ $\color{black}{Tin}$ : It's comes from house hold chemicals, the amount of water people use and waste people produce and throw away

$\color{black}{2D}$

→ $\color{black}{Thông}$ $\color{black}{Tin}$ : First, we need to recycle , which allows products to be used over and over again

$\color{black}{3A}$

→ $\color{black}{Thông}$ $\color{black}{Tin}$ :It can be conserved by talking short showers instead of baths , reparing leaky faucets,using the dishwasher or washing machine only when fully loaded

$\color{black}{4B}$

$\color{black}{5C}$

→ $\color{black}{Thông}$ $\color{black}{Tin}$ : It takes very little effort

$\color{Yellow}{Yiin}$