Mình cần gấp lắm các bạn giúp mình với ạ! Mình cảm ơn

18. He said he _______ return later. A. will B. would C. can D. would be 19. Jack ________ the door. A. has just opened B. open C. have opened D. opening 20. I have been waiting for you ______. A. since early morning B. since 9 a. m C. for two hours D. All are correct 21. Almost everyone _______ for home by the time we arrived. A. leave B. left C. leaves D. had left 22. By the age of 25, he ______ two famous novels. A. wrote B. writes C. has written D. had written 23. When her husband was in the army, Mary ______ to him twice a week. A. was reading B. wrote C. was written D. had written 24. I couldn't cut the grass because the lawn mower ______ a few days previously. A. broke down B. has been broken C. had broken down D. breaks down 25. I have never played badminton before. This is the first time I _____ to play. A. try B. tried C. have tried D. am trying 26. Since _______, I have heard nothing from him. A. he had left B. he left C. he has left D. he was left 27. After I _______ lunch, I looked for my bag. A. had B. had had C. have has D. have had 28. By the end of next year, George _______ English for two years. A. will have learned B. will learn C. has learned D. would learn 29. The man got out of the car, ________ round to the back and opened the book. A. walking B. walked C. walks D. walk 30. Henry _______ into the restaurant when the writer was having dinner. A. was going B. went C. has gone D. did go GIÚP MÌNH VỚI Ạ,MÌNH CẢM ƠN !

A(x)=2x⁴+3x +xᒾ+2x-6 B(x)=5xᒾ-3x+2x⁴-6x²+1 a)Tính A(1) b)Thu gọn và sắp xếp theo các hạng tử của mỗi đa thức trên theo lũy thừa giảm dần c)Tính P(x)=A(x)+B(x) Q(x)=A(x)-B(x)

Viết đoạn văn 8 đến 10 câu làm rõ đức tính giản dị của Bác Hồ trong bữa cơm,cái nhà,việc làm,quan hệ với mọi người,Qua đó,em cảm nhận được nét đẹp nào ở con người Bác Hồ?

Câu 1: Lập bảng thống kê các sự kiện tiêu biểu về diễn biến cuộc khởi nghĩa Lam Sơn (1418-1427)

8. The road sign means: A. No parking. B. Left turn only. C. No cycling D. Stop here. 9. I used to go to school ……………… A. with bike B. by foot C. in car D. by bus 10. Cyclists and motorists have to wear a ……………… when they ride a motorbike. A. cap B. mask C. helmet D. hard hat 11. ………………. is it from Hanoi to Hue? – About 668 km. A. How B. How far C. How long D. How much 12. Linda didn’t ………………. morning exercise when she got up early. A. use to did B. used to does C. used to do D. use to do 13. My father ………………. the bus to work every day. A. catches B. drives C. goes D. runs 14. ………….. do you like the Tulip Festival?- Because I like flowers and Dutch culture. A. What B. When C. Where D. Why 15. The Samba Parade in Rio Carnival is the Samba Parade with thousands of samba ……………… from various samba schools. A. perform B. performance C. performer D. performers 16. There are many …………. throughout the year. A. celebate B. celebrating C. celebrated D. celebrations

I. Complete the second sentence in each pair so that it has similar meaning to the first sentence. 1. People invented the wheel thousands of years ago. → The wheel 2. My father waters these flower every morning. → These flowers 3. People use computers all over the world. → Computers 4. Are they building a statue of Chu Van An? → Is ? 5. John invited Fiona to his birthday party last night. → Fiona 6. They keep many ancient things in museums. → Many ancient things 7. Do four busy streets surround the Temple of Literature? → Is ? 8. People make many famous films in Hollywood. → Many famous films 9. Her mother is preparing the dinner in the kitchen. → The dinner 10.I do all my homework on my computer. → All my homework II. Turn these sentences into passive voice. 1. The bill includes service. → 2. Nana chooses the book carefully. → 3. We don’t use that room. → 4. They grow fruits in California. → 5. These jeans attract many young people. → 6. People don’t use this road very often. → 7. I wash the dishes in the evening. →

3. The photograph (invent) by Thomas Edison in 1877. 4. For the past years, my mother (do) all my washing by hand. 5. No one (believe) his story. 6. The women in most countries in the world (give) the right to vote. 7. People (think) that Jack London's life and writing's (represent) ____the American love of adventure. 8. How many marks (give) to you by the teacher? 9. The detective (see) the woman (put) the jewelry in her bag. 10. Drivers (advise) to use an alternative route by police.

26. Many young men were ________for the dedication to the country in the Imperial Academy. A. renamed B. educated C. ranked D. grown 27. Many famous scholars in Viet Nam's history were graduated _______the Imperial Academy. A. in B. to C. at D. from 28. The old pagoda in this town was____ last month, but its architecture wasn't changed. A. reconstructed B. worked C. surrounded D. situated 29. Chu Van An had a remarkable________ in teaching. A. erection B. construction C. career D. preparation 30. I________ to sing first in the contest. A. am chose B. am chosen C. were chosen D. choose 31. Hoan Kiem Lake_______ in Ha Noi. It is one of the most famous lakes in Viet Nam. A. was situated B. were situated C. is situated D. are situated 32. Their organisation________ to support the preservation of historical places in this town last year. A. is founded B. are founded C. was founded D. were founded 33. Her presents________ in her mother's trip in Ha Noi last week. A. were bought B. are bought C. buy D. was bought 34. Some precious relics under Emperor Ly Thanh Tong________ in the Temple of Literature. A. are displaying B. was displayed C. is displayed D. are displayed

a,3/7.19/15-3/7.12/15 b,1/5+(-1/3)ᒾ.√81/25 c,(-1/2)³:3/8+|-2/3|-2021⁰