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.Waste in the School | B.School life |
C.Stop Wasting | D.Rich Resources in China |