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Đọc và trả lời câu hỏi:

How can we keep our teeth healthy? First, w ought to visit our dentist twice a year. He can fill a small holes in your 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 tooth brush and fluoride toothpaste at least twice a day, once after 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 fruit. Chocolates, sweet, biscuits and cakes are bad, especially when we eat them between meals. They are harmful because they stick to our teeth and cause decay.

Only when do a lot of people visit a dentist?

________________________

How often should we try to clean our teeth?

________________________

What shouldn't we eat a lot?

________________________

Why are sweets harmful?

________________________

How many pieces of advice are there in the passage?

________________________

hoàng minh trọng
18 tháng 10 2020 lúc 15:44

trả lời luôn quá , ...

- only when do a lot of people visit a dentist ?

when a lot of people have toothache

- how often should we try to clean our teeth ?

we should try to clean our teeth at least twice a day

- what should not we eat a lot ?

we should not eat a lot of sweat , chocolates , biscuits and cakes

- why are sweats harmful ?

because they stick to our teeth and cause decay

- how many pieces of advice are there in the passage ? ( có bao nhiêu lời khuyên trong đoạn văn ? )

there are 3 pieces of advice in the passage

hk tốt

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