Many people nowadays have to wear false teeth when they was middle-aged.

Since the beginning of this century,(1)………………decay has greatly increased. The amount(2) ………………sugar in our food has also increased Doctors and dentists now know that(3)……………………..is the chief cause of tooth(4) ……………. Eskimos’ teeth, for example, started to(5)……….when they began to eat sweet(6)……………...

Long ago doctors did not like(7)………treat people’s teeth. Barbers and blacksmiths(8)…………….after people’s teeth and pulled them(9)………… when they decayed. Some people thought(10)…………………………….was a punishment from the gods.

26. parents / prefer / visit / new city / every year.

27. Although / she / short, / she / wants / become / basketball / player.

28. American students / not / usually / wear / uniforms / school.

29. This company / supplied / the products / since 2000.

30. We must / get / early / because / we will/ leave / the house / five / tomorrow.

Đặt câu hỏi cho phần được gạch chân trong các câu sau

1. Mr. Hai travels to work by car  every morning

2. They often go swimming in the summer  

3. My mother needs an apple 

4. Jane ‘s sister works in a hospital

5. These students have English on Tuesday and Friday