1, It is essential that you do your homework before going to school.

=> You must do your homework before going to school.(câu có must là câu bắt buộc(hoặc phải)

2, It is necessary for us to be present at the class discussion on Saturday.

=> We must be present at the class discussion on Saturday(câu có must là câu bắt buộc(hoặc phải)

3, Ha Noi is large, Bangkok is large ang Tokyo is the largest.

=> Tokyo is the largest of the tree cities(câu so sánh hơn nhất)

4, It is wrong of us to throw rubbush.

=> We mustn't throw rubbish.(câu có must là câu bắt buộc(hoặc phải)

5, How many apples doea she want?

=> How many apples would she like?(có bao nhiêu....?)

6, Learning how to use a computer is very easy.

=> It is easy to learn how to use a computer.( dễ để.....)

7, He drives very carefully.

=> He is a careful driver.(câu viết lại bằng trạng từ)

8, Student at our school take part in a lot of outdoor activities.

=> Students at our school do a lot of outdoor activities.(Câu khẳng định)

9, I find it difficult to find a better solution to that problem.

=> I have a difficulty in finding a better solution to that problem.(câu khẳng định)

10, Lan is the oldest of the three sisters.

=> Lan has two younger sisters.(Từ đồng nghĩa)

$#nguyen$