1. washing

2. pollution 

3. noise

4. most useful

5. modern

6. comfortable

7. electricity

8. farmer

9. beautiful

10. sporty

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1. No, there aren't.

2. Two separate teams.

3. Because they want to get the best score.

4. Yes, they are.

II.

1. washing (máy giặt)

2. pollution (ô nhiễm tiếng ồn)

3. noise (nổi tiếng)

4. most useful (hữu dụng nhất)

5. modern (hiện đại)

6. comfortable  (thoải mái)

7. electricity (điện)

8. farmer (nông dân)

9. beautiful (xinh đẹp)

10. sporty (giỏi thể thao)

II.

1. No, there aren't. There are only two.

2. Team sports require two separate teams.

3. Two separate teams compete against each other because they want to get the best score.

Bổ sung câu 4 đầu bài:

4. Are team sports sometimes called competitive sports?

⇒ Yes, they are.