I was born in a quiet village where the influence of the city is not much. In my village, people live very closely to each another. People are very simple in thought and behavior. Therefore they are friendly and helpful . So, the crimes of the city are almost unknown in my village. People work together and live in peace. I love them.

My sister doesn’t play tennis as well as she did last year.

1. They said, "This is our book."

They said that was their book.
2. She said, "I went to the cinema yesterday."

She said that she had gone to the cinema the day before.

3. ''What is the name of your school'', Link asked Hoa.

Linh asked Hoa what the name of her school was.

4.''Where do you live?'', Tom asked Bill.

Tom asked Bill where he lived.

5. ''Is my son in Quang Nam province?'', Nga asked Na.

Nga asked Na if her son was in Quang Nam province.

diện tích thật là 56250000

Bài giải:

Từ trang 1 đến trang 9 cần số chữ số là:

(9+1-1)x1=9(chữ số)

Từ trang 10 đến trang 99 cần số chữ số là:

(99-10+1)x2=180(chữ số)

Từ trang 100 đến trang 128 cần số chữ số là:

(128-100+1)x3=87(chữ số)

Để đánh dấu một quyển sách dày 128 trang cần số chữ số là:

9+180+87=276(chữ số)

               Đáp số: 276 chữ số

Erna Hart is going to swim across the English chanel tomorrow. She is going to set out from the French coast at 5 o'clock in the morning. Erna is only 14 years old and she hopes to set up a new record. She is a strong swimmer and many people feel that. She is sure to succeed. Her father will set out with her in a small boat Mr. Hart has trained his daughter for years. Tomorrow he will be watching her anxiously as she swim the long distance to England. Erna intends to take short rests every two hours. Most of her school friends will be waiting for her on the English coast. Among them will be Erna's mother who swans the channel herself when she was a girl.