19. She forgot ____________ off the gas before going out. (turn/ turning/ to turn/ turned) điền gì và tại sao ?

Mọi người giúp em với Một khối hộp được bắn lên mặt nghiêng không ma sát, góc nghiêng θ=20.00 với vận tốc ban đầu bằng 5.00m/s. Xác định quãng đường khối hộp đi được cho đến khi dừng lại.

Làm giúp mình phần III, IV với ạ

Cho biết ý nghĩa của việc tác giả kết thúc truyện " chiếc lá cuối cùng " bằng lời của Xiu mà không để Giôn-xi phản ứng gì thêm?

Mọi người giúp mình mấy câu trắc nghiệm Hóa với Câu 1: Cho 7,2 gam một kim loại tác dụng vừa đủ với HCl cho 6,72 lít khí H2(đktc). Cho biết kim loại đó? A)Mg B)Fe C)Ca D)Zn Câu 2: Cấu hình e lớp ngoài cùng của các nguyên tử các nguyên tố halogen là: A) ns2np5 B) ns2np3 C)ns2np4 D)ns2np6. Câu 3: Theo chiều tăng điện tích hạt nhân thì khả năng oxi hóa của các halogen đơn chất: A) tăng dần B) giảm dần C) vừa tăng,vừa giảm D) không thay đổi. Câu 4: Hòa tan hoàn toàn 20 gam hỗn hợp Mg và Fe bằng dung dịch HCl dư. Sau phản ứng thu được 11,2 lít khí (đktc) và dung dịch X. Cô cạn dung dịch X thì thu được bao nhiêu gam muốikhan? A) 71,0 gam B) 90,0gam C) 55,5 gam D) 91,0gam

Today, millions of people want to learn or improve their English but it is difficult to find the best method. Is it better to study in Britain or America or to study in your own country? The advantages of going to Britain seem obvious. Firstly, you will be able to listen to the language all the time you are in the country. You will be surrounded completely by the language wherever you go. Another advantage is that you have to speak the language if you are with other people. In Italy, it is always possible, in the class, to speak Italian if you want to and the learning is slower. On the other hand, there are also advantages to staying at home to study. You don't have to make big changes to your life. As well as this, it is also a lot cheaper than going to Britain but it is never possible to achieve the results of living in the UK. If you have a good teacher in Italy, I think you can learn in a more concentrated way than being in Britain without going to a school. So, in conclusion, I think that if you have enough time and enough money, the best choice is to spend some time in the UK. This is simply not possible for most people, so being here in Italy is the only viable option. The most important thing to do in this situation is to maximize your opportunities: to speak only English in class and to try to use English whenever possible outside the class. 1. People who don't have enough time and money you should go to Italy to learn English. ____ 2. You have more chances to practice English in Britain. ____ 3. Britain is the good place to learn English. ____ 4. You can spend much more money when learning in your country than in Britain ____ 5. What is the article about? A. How many people learn English. B. The best way to learn English. C. English schools in England and America. D. How to live in Britain. 6. What is one of the advantages of going to the UK to learn English? A. The language schools are better. B. There are no Italians in Britain. C. You will have to speak English and not your language.

Sẽ làm giúp mình nhé ! ĐỀ 2 II. VOCABULARY AND GRAMMAR: (2.5 points) 1. Have you ever been to Phong Nha ………………… in Viet Nam? A. Place B. Cave C. Reef D. Bay 2. She asked if many tourists ………………… to visit My Son in summer. A. want B. will want C. wanted D. were wanting 3. In Tokyo, it’s going to be ………………… all day with one or two sunny periods. A. cloudy B. cloud C. clouds D. cloudily 4. Thanks for inviting me to the rice-cooking ………………….. A. meeting B. race C. crowd D. festival 5. I asked her …………………… she was enjoying her dinner. A. weather B. in case C. if D. unless 6. I’m bored. Let’s play ………………… of chess. A. a quiz B. a show C. a game D. a questionnaire 7. On Christmas Eve, people often …………………… a tree. A. decorate B. are decorated C. were decorated D. decorates 8. It’s easy. I’ll give you ……………………to guess. A. a key B. a clue C. an answer D. a reply 9. Would you show me how ………………… the lift? A. work B. working C. worked D. to work 10. When the mailman ……………………, the Le family was watching TV. A. came B. come C. comes D. to come III. READING: (2.5 points) A. Read the letter below and choose the most suitable word for each blank. Dear Betty, I have just (1) ………………… your letter on a three-day trip to the beach. I wish I could go (2) ……………… you but I can’t. What a pity! Next week I’ll (3) ………………… an examination of English, Math and Chemistry, so I have to learn much more than usual (4) ………………… the exam. I hope I (5) ……………… go with you on another occasion. Thank you for your invitation. See you soon. John 1. A. receive B. receives C. received D. to receive 2. A. for B. with C. to D. about 3. A. have B. has C. having D. to have 4. A. of B. in C. at D. for 5. A. will B. would C. could D. might B. Read the passage about Mrs. Black and choose the correct answer for each blank: Mrs. Black is a doctor. She works in Bach Mai hospital. This is her routine. Everyday, she gets up at five thirty in the morning. She has breakfast then goes to work by motorbike at six o’clock. She works from seven o’clock in the morning until three o’clock in the afternoon. She usually eats lunch after work. In the afternoon, she often goes shopping or plays tennis with her friends. She eats dinner at six and then watches the seven o’clock news program. She goes to bed at ten o’clock. 1. What time does Mrs. Black get up? A. At 4.30 B. At 5.00 C. At 5.30 D. At 6.00 2. How does she go to work? A. By car B. By motorbike C. By train D. By bus 3. She works from seven o’clock in the morning until ……………… o’clock in the afternoon. A. 3 B. 4 C. 2 D. 5 4. Who does she often play tennis with? A. Her brothers B. Her parents C. Her sisters D. Her friends 5. What time does she go to bed? A. At 9 o’clock B. At 10 o’clock C. At 11 o’clock D. At 12 o’clock IV. WRITING: (2.5 points) A. Rewrite each sentence, beginning as shown, so that the meaning stays the same: 1. The sister said to Tom, “Are you hungry?” --> The sister asked Tom …………………………………………………………………………. 2. Walking home late in the evening is dangerous. --> It is dangerous ………………………………………………………………………………..

Giai giup mik bai 1,2,3 mik se thuong lon

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