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.

Cách làm:

1. Đọc đoạn văn và xác định từ khóa trong câu hỏi.
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3. Tìm các ý chính trong đoạn văn và trả lời câu hỏi dựa trên thông tin đó.

Câu trả lời:

Many people nowadays have to wear false teeth when they are middle-aged because tooth decay has greatly increased since the beginning of this century. The amount of sugar in our food has also increased, which contributes to tooth decay. Doctors and dentists now know that sugar is the chief cause of tooth decay. Eskimos' teeth, for example, started to decay when they began to eat sweet foods. Long ago, doctors did not like to treat people's teeth and barbers or blacksmiths would pull out decayed teeth. Some people even thought that tooth decay was a punishment from the gods.

Long ago, doctors did not like to treat people's teeth. Barbers and blacksmiths pulled out people's decayed teeth.

Eskimos' teeth started to decay when they began to eat sweet food.

Doctors and dentists now know that sugar is the chief cause of tooth decay.

The amount of sugar in our food has also increased.