11. You need an English – Vietnamese dictionary, ____________? 12. You have never watched any films made in Bollywood, ____________? 13. You’re waiting for your letter, ____________? 14. We had a good time, ____________? 15. Some people commit crime when they have no money and no food, ____________? 16. You enjoy living in a peaceful neighbourhood, ____________? 17. It’s hot today, ____________? 18. The factory will bring more jobs to local people, ____________? 19. You forgot to bring your textbooks this morning, ____________? 20. The idea can change the solution, ____________?

. Put a tag question at the end of the sentences 1. In big cities, life can become very difficult and unpleasant, ____________? 2. The world will soon become overpopulated, ____________? 3. You haven’t gone to Rio de Janeiro, ____________? 4. They didn’t like the film, ____________? 5. Jeju Island looks very peaceful, ____________? 6. We don’t have to go yet, ____________? 7. You don’t like pollution, ____________? 8. I think a megacity is a very large city with big population, ____________? 9. You won’t tell anyone, ____________? 10. The number of English speakers is increasing very quickly, ____________?

5. Change the following statements into tag questions. 1. People speak English all over the world. 2. Everything is ready. 3. Someone called me last night. 4. She's been studying a lot recently. 5. He hasn't been running in this weather. 6. He went to the party last night. 7. You never come on time. 8. Well, I couldn't help it. 9. You remembered to feed the cat. 10. Let's play tennis.

6. I got to work in half an hour yesterday. => It took .......................................................................................................... 7. My mother doesn't like coffee and tea. => My mother likes neither.................................................................................... 8. You shouldn't eat too much candy. => You'd........................................................................................................... 9. Lan is more intelligent than her sister. Lan’s sister isn’t ......................................................................................... 10. He looks after the sick people. He takes ........................................................................................................ 11. Do you enjoy listening to music? Are you interested .................................................................? 12. We have a two - month summer vacation. Our summer vacation lasts ................................................................ 13. Vietnamese students have fewer vacations than American ones. American students ........................................................................................ 14. It takes me about two hours each day to do my homework. I spend ........................................................................................................ 15. Life in the past is not as comfortable as life nowadays. _ Life nowadays __________________________________________________ 16. You shouldn’t forget to write to your parents. _ You’d _______________________________________________________ 17. Trung didn't go to school last Saturday. _Trung was ____________________________________________________ 18. Our summer vacation lasts three months. _ We have a __________________________________________________ 19. These naughty students like computer games better than school lessons. _ These naughty students prefer ____________________________________ 20. Learning English is very difficult for my brother. _ It is __________________________________________________________

1. You’re the best guitarist in the school. No one _________________________________________________________________. 2. He didn’t remember anything about it, and I didn’t, either. He forgot________________________________________________________________. 3. School uniforms don’t have to be worn at all times. Students ________________________________________________________________. 4. Don’t fry food which can be grilled. Avoid__________________________________________________________________. 5. With luck, she will win the cookery competition. If _____________________________________________________________________. Finish each of the following sentences in such a way that it is as similar as possible in meaning to the sentence printed before it 1 Listening to music is more interesting than watching TV. => I prefer........................................................................................................ 2. It isn't important for you to finish the work today. => You don't...................................................................................................... 3. How much is this dictionary? => What ........................................................................................................? 4. How heavy is the chicken? => What...........................................................................................................? 5. Mr. Trung and Mrs. Trung type quickly . => Mr. Trung and Mrs. Trung..................................................................................

một vật có khối lượng 9594. Người ta đo thể tích của vật là 1,23 m khối a. xác định khối lượng giêng của vật b. trọng lượng giêng của vật là bao nhiêu

1-2+3-4+...+99-100 2-4+6-8+...+48-50

Một lớp học có 30 học sinh lớp học chia làm 3 dãy. Hỏi mỗi dãy có bao nhiêu học sinh

Cho ∆ABC có Â =90° và AB=AC. Gọi K là trung điểm của BCâ a. Chứng minh:∆AKB=∆AKC b. Chứng minh:AK vuông góc với BC c. Từ C vẽ đường vuông góc với BC cắt đường thẳng AB tại E. Chứng minh EC//AK

chứng minh hoa kì là nước giàu tài nguyên thiên nhiên?