điền từ đúng

1. if you need any help, you can ask Tom. He's very ......(help)

2. i have a ...... to talk a lot whenever i am nervous. (tend)

3. gas and oil ..... always increases in cold weather. (consume)

4. we find advertising on television very .... (effect)

5. the students wear their school uniforms with .... (proud)

viết lại câu

1. He will only phone if he changes his mind.

-> He won't

2. I haven't been to Bristol for three years.

-> The last time

3. "Please sit down" , the teacher said to his students.

-> The teacher

4. He is too short to play basketball.

-> He's so

tìm lỗi sai và sửa lại cho đúng

1. A. Could you phone B. me as C. soon as he D. 'll come back ?

2. A. Would you please stop B. to make C. so D. much noise?

3. Last summer I A. have stayed B. on C. my uncle farm D. for two weeks.

4. A. What B. difficult to master C. a D. foreign language!

5. The police A. said that they B. had reacted as C. fastly as they D. could.

tìm x

1) \(\sqrt{\left(x-4\right)^2}\) = 5

2) \(\sqrt{4x-4}\) + \(\sqrt{25\left(x-1\right)}\) - \(\sqrt{\frac{1}{4}\left(x-1\right)}\) = 5 - \(\sqrt{x-1}\)