Choose the correct answer for each of the following questions

Question 6. Choose the correct answer for each of the following questions. (1pt)

How can we keep our teeth healthy?

Firstly, we ought to visit our dentist twice a year. He can fill the small holes in our teeth
before they destroy the teeth. He can examine our teeth to check that they are growing in the
right way. Unfortunately, many people wait until they have toothache before they see a
dentist.
Secondly, we should brush our teeth with a toothbrush and fluoride toothpaste at least twice a
day - once after breakfast and once before we go to bed.
Thirdly, we should eat food that is good for our teeth and our body such as milk, cheese, fish,
brown bread, potatoes, red rice, vegetables, and fresh fruit. Chocolate, sweets, biscuits and
cakes are bad, especially when we eat them between meals. They are harmful because they
stick to our teeth and cause decay.
36. How often should we visit our dentist a year?
A. one time B. two times C. three times D. four times
37. Why should we visit our dentist regularly?
A. Because we ought to visit our dentist twice a year.
B. Because he can fill the small holes in our teeth before they destroy the teeth.
C. Because he can examine our teeth to check that they are growing in the right way.
D. Because many people wait until they have toothache before they see a dentist.
38. What should we brush our teeth with?
A. a brush B. a toothbrush
C. fluoride toothpaste D. a toothbrush and fluoride toothpaste
39. What kinds of food are not bad for our teeth?
A. milk, cheese, fish B. brown bread, potatoes, red rice
C. vegetables, and fresh fruit D. All of them
40. What does the word “They” refer to?
A. chocolate, sweets, biscuits and cakes B. cakes are bad
C. meals D. our teeth