Reading 2

Tooth decay occurs when the teeth are frequently exposed to foods containing carbohydrates such as starches and sugar. Such foods include soda pop, cake and sticky fruit.

There are at least two ways people can do to prevent tooth decay. The first is to pay attention to their diet. What people eat plays a very important role in the overall well being of the mouth. Eliminating sugar from the diet will prevent the formation of cavities that usually develop on the chewing surfaces of the back teeth and on the surfaces of teeth where they touch one another. Another way to prevent tooth decay is to keep the teeth clean. People should brush their teeth immediately after eating to remove food particles. Daily brushing helps the teeth stay clean, stimulstes the gums, and keeps them firm. Teeth tend to decay on touching surfaces, and the area between two teeth because itis difficult to clean between them with a toothbrush. Using dental floss is highly recommended to clean between the teeth.

1.       The word “they” in line 8 refers to _______

a.       People

b.      Cavities

c.       Surfaces

d.      Teeth

2.       The word “them” in line 11 refers to _______

a.       People

b.      Particles

c.       Teeth

d.      Gums

3.       The word “their” in line 5 refers to _______

e.      People

f.        Cavities

g.       Surfaces

h.      Teeth