Read the following passage and choose the best answer for each blank

----- Nội dung dịch tự động từ ảnh -----
Read the following passage and choose the best answer for each
blank.
KEEPING OUR TEETH HEALTHY
It's very important to have healthy teeth. Good teeth help us chew
our food. They also help us look nice. How does a tooth go bad? The
decay begins in a little crack in the enamel covering of the tooth. This
happens after germs and bit of food have collected there. Then the
decay slowly spreads inside to the tooth. Eventually, poison goes into
the blood, and we may feel quite ill.
How can we keep our teeth healthy? First, we ought to visit the
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.
Secondly, we should brush our teeth with a toothbrush and fluoride
toothpaste at least twice a day-once after the breakfast and once
before we go to bed. We can also use wooden toothpicks to clean
between our teeth after a meal.
Thirdly, we should eat food that is good for our teeth and our body:
milk, cheese, fish, brown bread, potatoes, red rice, raw vegetables, and
fresh fruits. Chocolates, 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.
1.Good teeth help us
our food.
A. be nice
B. have good eyesight
C. chew
D. be important
2. When food and germs collect in a small crack, our teeth
A. become hard
B. send poison into the blood
C. begin to decay
D. make us feel quite ill
3. A lot of people visit the dentist only when
A. their teeth grow properly
B. they have holes in their teeth
C. they have toothache
C. they have brush their teeth
4. We ought to clean our teeth
A. After breakfast
B. before breakfast
C. before bedtime
D. Both B &C
5. We shouldn't eat a lot of
A. red rice
B. fresh fruit
C. fish
D. chocolate