Exercise 9: Complete the sentences with the correct relative pronouns. 1. The woman _________ I spoke to is Japanese. 2. Please show me the website on ________ you found this reference. 3. Newcastle, through ________ we drove, looked peaceful. 4. It was Nina _______ didn’t turn up at the meeting. 5. Mrs. Richmond, _______ is 42, has three children. 6. Dorothy said something _______ I couldn’t hear clearly. 7. There was a little _______ we could do to help her. 8. I’d like to get a newspaper, please. The one _______ has the news about the election. 9. Your mother, _______ answered the phone, told me you were sick. 10. Hide and seek is a game _______ I like to play as a child.

Exercise 8: Choose the best answer. 1. The students are reading some books …………. are on disasters. a. who b. whom c. which 2. The lion-tamer and his lion ………… we saw on the stage came from Moscow. a. who b. which c. that 3. The children ………. are playing in the back yard are Mr. Ba’s nephews. a. whom b. that c. which 4. Vietnam, ……….. is in the Southeast Asia is considered the pearl of the region. a. which b. that c. where 5. We are going to visit Ha Long Bay, ……… is one of the most interesting places of the North. a. what b. which c. where 6. Hoa and her dog ……….. are standing over there go to the park every Sunday morning. a. that b. who c. which 7. The word “typhoon” ………. comes from the Chinese means “big wind”. a. who b. that c. when 8. Mount Pinatubo, ……… erupted in 1991, is in Philippines. a. who b. which c. when 9. Hundreds of people died in that volcanic eruption………had been warned before. a. who b. which c. when 10. Tornadoes can suck up things……....are in their path. a. who b. that c. where 11. The huge earthquake…….. struck the city of Kobe in Japan killed a large number of people. a. who b. that c. where 12. Neil Armstrong, ……. was the first man walking on the moon is an American. a. who b. which c. whom 13. Nobody predicted the earthquake ……….. occurred in Virginia in 2003. a. who b. which c. when 14. My father will fly to Ha Noi ,……….. is the capital city of Vietnam. a. who b. which c. where 15. My class mates dislike postcards ………. show rough sea and cloudy sky. a. who b. where c. which 16. Mr. Brown, …... is said to be the most famous doctor of the city, has receive an award from the Government. a. which b. who c. whom 17. They called their friends …….. have lived in this city for a long time, to ask for help. a. who b. which c. whom 18. The boys gave their friends some posters ……… they bought yesterday. a. which b. who c. whom 19. She showed her parents a picture of the places …….. she had visited. a. which b. who c. where 20. My mother bought a lot of stuff ……. we might need for our house. a. that b. who c. when

Exercise 7: Underline the correct word in each sentence. 1. Do you know whom/ whose laptop this is? 2. Everyone who/ which was at the party was delighted at his arrival. 3. There comes a bus which/ what can take us to the zoo. 4. Jim, whom/ that I met at the rail station, turned out to be my best friend’s brother. 5. My father often takes a train which/ who passes by Macquarie University every day. 6. Summer is the time when/ where we often have outings together. 7. That/ What my kids like the best is an afternoon at the local amusement park. 8. The people which/ whose luggage was lost had to report to the lost properties office. 9. Where’s the glasses whose/ that I left on this bookshelf? 10. The shop where/ that I went to didn’t have the rice I need.

Mở rộng một khu đất hình thang vẫn giữ nguyên chiều cao và đáy lớn ta được khu đất hình vuông có diện tích 81m2. Sau khi mở rộng, diện tích khu đất tăng thêm 6,3m2 . Tính đáy nhỏ của hình thang đó.

Exercise 6: Choose the best answer. 1. I’m not an astronaut. If I _________ an astronaut, I ________ my camera with me on the rocket ship. A. am/ will take B. was/ would take C. were/ had taken D. was/ would have taken 2. Don’t throw aerosol into a fire. An aerosol ________ if you _______ it into a fire. A. will be exploded/ throw B. would explode/ threw C. explodes/ will throw D. can explode/ throw 3. That sounds like a good offer. I ________ it if I ________ you. A. had accepted/ were B. will accept/ am C. would accept/ were D. accepted/ were 4. Nora is using my car right now. Is she ________ it back in time, you’re welcome to borrow it. A. brought B. would bring C. will bring D. brings 5. If energy ________ inexpensive and unlimited, many things in the world ________ different. A. is/ will be B. was/ would be C. had been/ would have been D. would be/ were 6. If you _______ all of my questions, I _______ anything to help you. A. don’t answer/ can’t do B. didn’t answer/ won’t do C. wouldn’t answer/ can’t do D. wouldn’t answer/ couldn’t do 7. If I _______ wings, I ______ take an airplane to fly home. A. have/ won’t have to B. had/ would have to C. have/ will have to D. had/ wouldn’t have to 8. - Here’s my phone number. - Thanks. I ______ give you a call if I _______ some help. A. will give/ will need B. would give/ needed C. give/ need D. will give/ need 9. If we ______ serious about pollution, we ______ more money to research. A. had been/ spent B. were/ had spent C. were/ would spend D. are/ will spend 10. Sea water is salty. If the oceans ______ of fresh water, there ______ plenty of water to irrigate all the deserts in the world. A. consisted/ would be B. consisted/ were C. would consist/ could be D. consist/ will be

cho $a_{1}$,$a_{2}$,...$a_{100}$ là các số tự nhiên thỏa mãn $a_{1}$+$a_{2}$+...$a_{100}$=22015 chứng minh rằng $a_{12}$+$a_{22}$+$a_{32}$+...$a_{1002}$ chia hết cho 2

Hai cửa hàng A và B cùng bán sách theo giá ghi trên bìa. Cửa hàng A hạ giá 20% của giá ghi trên bìa, cửa hàng B hạ giá 2 lần: lần một hạ 10% của giá ghi trên bìa, lần hai hạ giá 10% của giá trước đó. Nếu em di mua sách em sẽ vào cửa hàng nào để mua được sách rẻ hơn?

+ Log(2) (x^2+x+2)=4 +Log(2) (2x+1)=3 giải các phương trình

Bài 2 nhé :)))))))))))))))))))))

Giúp mk giải câu 2 này vs nha mk dg cần gấp