| A.eat too much | B.don‘t work hard |
| C.waste things | D.throw rubbish everywhere |
| A.Fresh water | B.Forest. |
| C.Oil. | D.Coal. |
| A.We may still have enough oil. | B.We may still have enough coal. |
| C.We may have a little oil. | D.We may have no coal or oil to use. |
| A.Waste brings problems. | B.Waste can bring no problem. |
| C.China is rich in fresh water. | D.Students never waste things. |
| A.Stop Wasting | B.School life |
| C.Waste in the School | D.Rich Resources in China |