READING Day 1.1

Many people are very concerned about the destruction of the ... .

(forests in a tropical area that receives a lot of rain)

khí cacbonic

chống ô nhiễm

duy trì trái đất

lọc nước

động vật linh trưởng

These shoes hurt my ... .

• Attractive ... can help to sell products.

You can see the ... of the water here. (the fact of being clean)

Regular exercise helps ... heart disease.

(to take careful action in order to try to prevent something from happening)