Khoanh tròn các hình thức chính xác:

1.(The old people/Old people)often forget the things/things.

2.I like talking to (the old ladies/old ladies)who live in that house.

3.(The books/Books)are expensive in my country

4.''Where shall I put (the books/books?)'' - ''On the floor''

5.Why are (the windows/windows) open in this room?

6.(The flowers/Flowers) are beautiful.Thank you very much.

7.(The life /Life)is something hard

8.I don't understand (the words/words)of that song

9.(The food/food) in this restaurant is very expensive.

Làm tính nhân

2x^2(5x^3 -4x^2y-7xy+1)

Tìm x

2x(x-5)-x(3+2x)=26

Viết câu hỏi cho câu trả lời:

12......................?

->He looks nervous because he is seeing a dentist

13..................?

->I was absent from class last Friday because I was ill/sick

14......................?

->I have a headache

15......................?

->He has a bad cold.