11. The gases from the chemical factories are extremely harmful (harm)

12. We've decided to interview only ten applications for the job (apply)

13. The water is polluted. You can't drink it (pollute)

14. Boys and girls may behave differently in this situation. (differ)

15. He was the greatest scientist (science)

16. His son's behaviour has not improved much (behave)

17. He draws cartoons for a humorous magazine (humor)

18. For some people, UFOs only exist in films for entertainment. (entertain)

19. My brother is a stamp collector  (collect)

20. The lost shoe is one of the traditional stories I like best (tradition)

21. Life is not comfortable without modern equipment (equip)

1. An is a orphaned child whose parents are dead. (orphanage)

2. She looks more beautiful than her sister (beauty)

3. What is the correct pronunciation of this word? (pronounce)

4. There is room for further improvement in your English (improve)

5. My grandmother can read well without glasses (good)

6. She actively participates in social work. (participation)

7. Last year we had an enjoyable summer holiday (enjoy)

8. He was proud of his achievements in the field of politics. (pride)

9. You'd better do some revisions for the final exams (revise)

10. The importance of the project made me tense. (important)

b/ My mother is a receptionist at the Cleverlearn Language Centre. (WHAT)

=> What is your mother's job? / What does your mother do?

c/ It's about 2 kilometers from my house to the movie theatre. (HOW FAR)

=> How far is it from your house to the movie theatre?

d/ We have math and literature every Monday morning. (WHEN)

=> When do you have math and literature?

e/ In hot weather, people often feel thirsty (HOW)

=> How do people often feel in hot weather?

f/ All the students in class 7A3 come from Ha Noi (WHERE)

=> Where do all the students in class 7A3 come from?

1.Can she take care of herself while her mother is away?

=> Can she look after herselft while her mother is away?

2. Roller-skating doesn't interest Sonia

=> Sonia isn't interested in roller-skating

3. You ought to ride th bike more carefully next time

=> You had better ride the bike more carefully next time

4. My parents didn't let me stay out late when I was young

=> I wasn't allowed to stay out late by my parents when I was young

5. Phillip usually works hard

=> Phillip is a hard worker.

Khẳng định : I have lunch box at 6.15 and I eat my snack at 6.30

Phủ định : I don't have lunch box at 6.15 and I don't eat my snack at 6.30

Nghi vấn : Do you have lunch box at 6.15 and you eat your snack at 6.30?

Exercise 11 :

1.  Listening to music is much more interesting than going to the circus.

=> I prefer listening to music to going to the circus.

2. We didn't enjoy the trip because of the heavy rain

=> The heavy rain prevented us from enjoying the trip

3. You shouldn't eat too many candies

=> You had better not eat too many candies.

4. He is a slower and more careful driver than Lan

=> He drives more carefully than Lan

5. The visitor spoke too quickly that I couldn't understand what he said

=> The visitor spoke too quickly for me to understand

6. You shouldn't eat too much meat

=> You'd better not eat too meat

7. How heavy is the chicken?

=> What is weight of the chicken?

8. Hoa is a hard students

=> Hoa studies hard

9. It takes me about two hours each day to do my homework

=> I spend about two hours each day doing my homework

10. He is a slower and more careful driver than I am

=> He drives more carefully than I do.

Exercise 12 :

1. It took Mr.Hoang half an hour to walk to work yesterday.

=> Mr.Hoang spent half an hour walking to work yesterday.

2. What is the price of this cap?

=> How much is this cap?

3. You shouldn't eat too much meat

=> You'd better not eat too much meat

4. Lan is the youngest of the three sisters

=> Lan has two sisters

5. Our house is older than any other house in the living centre

=> Our house is the oldest one in the living centre

6. Mai usually works hard

=> Mai is usually a hard worker.

7. There are eight hundred stamps in Hoa's collection

=> Hoa's collection has eight hundred stamps

8. How heavy is the chicken?

=> What is weight of the chicken?

9. How much is this book?

=> What is the price of this book?

1. - Do you have English lesson on Monday?

- No, on Tuesday.

2. My brother wants to study film and photography

3. Children like to play ball games

4. My sister sometimes helps my brother to do the housework

5. What do you usually have for breakfast?

Bread and milk.

6. A good friend is ready to share things with his/her classmates.

7. There are international schools in Ha Noi and Ho Chi Minh City

8. We have some new subjects in this school year : Physics, Computer studies , etc

1. My homework it is not the same yours (Mình sửa lại)

=> My homework is different from yours

2. She is a better singer than her sister

=> Her sister doesn't sing as well as she does.

3. I am more careful than my brother

=> My brother is not as careful as I

4. Harry Potter attacts a lot of children

=> A lot of children are attracted to Harry Potter

5. We can get to school in 30 minutes

=> It takes us 30 minutes to get to school