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jflamusic123dat
2 năm trước
Bài nữa này mn 1:Cho các số sau:37;57;67;77;87 a)Số nào là số nguyên tố ? vì sao ? b) Số nào là hợp số ? vì sao ? 2:Tổng hiệu sau là số nguyên tố hay hợp số ? a)17.19+23.29 b)5.8-3.13 c)143.144.145-145.144.143 3:Cho các số sau:504;900 a)Hãy phân tích các số đó thành thừa số nguyên tố ? b)Tìm các ước nguyên tố của các số c)Tìm tập hợp các ước của các số đó 4:Số 7056 có phải là số chính phương không?
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RELATIVE CLAUSE Combine the following sentences, using who, whom, which or whose: 1. How did you know that man? I met him at the site conference.  ______________________________________________________________________ 2. The graduation ceremony was very formal. All of us went to it.  ______________________________________________________________________ 3. Rich comes from a country. Its history goes back thousands of years.  ______________________________________________________________________ 4. We visited Belgrade. It is the capital city of Yugoslavia.  ______________________________________________________________________ 5. Louisville was founded in 1778. It is the largest city in Kentucky.  ______________________________________________________________________ 6. These people are very enthusiastic. They volunteer to do charity work.  ______________________________________________________________________ 7. The Great Wall of China can be seen from the moon. It is one of the great wonders in the world.  ______________________________________________________________________ 8. Max attends a training course to become a pilot. He is very interested in flying.  ______________________________________________________________________ 9. Hue is famous with many kinds of festivals. It was admitted as world’s cultural heritage.  ______________________________________________________________________ 10. These wild animals are in danger. People are working hard to save them from being extinct.  ______________________________________________________________________ 11. The Great Fire of London broke out in 1666. It destroyed a large part of the city.  ______________________________________________________________________ 12. Van Gogh cut off his ear. He was a well known artist.  ______________________________________________________________________ 13. David is going to talk about careers. I’m sure you all know him.  ______________________________________________________________________ 14. That is the woman. I was telling you about her.  ______________________________________________________________________ 15. The girl chatted with him yesterday. She arrived here at 6:30.  ______________________________________________________________________ 16. The man is talking to my father. He spent 15 minutes measuring our kitchen.  ______________________________________________________________________ 17. The architect designed these flats. He has moved to HCM City.  ______________________________________________________________________ 18. The young man lives in the corner. He rides an expensive motorbike.  ______________________________________________________________________ 19. . I’m reading the book. I bought it in 1996.  ______________________________________________________________________ 20. The young man is talking to our teacher. He is Ba’s brother.  ______________________________________________________________________ 21. We visited the monument. It was built a hundred years ago.  ______________________________________________________________________ 22. The boy gave his parents big hugs before he left. He went abroad to study.  ______________________________________________________________________ 23. My friends had so much fun at the festival. They wanted to go there again.  ______________________________________________________________________ 24. Children like to eat ice-cream. It can cause toothache.  ______________________________________________________________________ 25. The lady is a famous writer. You met her at the party last night.  ______________________________________________________________________ 26. The child enjoyed the chocolates. Her mother bought them from France.  ______________________________________________________________________ 27. Dr Oley is our family’s dentist. He is a popular dentist in the city.  ______________________________________________________________________ 28. The lecturer is my uncle. He gave an interesting talk on TV last night.  ______________________________________________________________________ 29. Mr. Phong hasn’t come yet. He is supposed to be at the meeting.  ______________________________________________________________________ 30. The student kept talking about the project. It was done last week.  ______________________________________________________________________ 31. Lan went back home. She forgot to turn off the faucet.  ______________________________________________________________________ 32. The boys are interested in football. It is a popular game all over the world.  ______________________________________________________________________ 33. There’s the boy. He broke the window.  _______________________________________________________________

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