Hai cạnh góc vuông của một tam giác vuông có độ dài lần lượt bằng 3cm và 4cm.Độ dài cạnh huyền của tam giác đó bằng

chỉ giúp mình đề 3 thôi nhé~!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

I. Complete the sentences with “since” or “for”. 1. She has been away …………….a year. 2. Please hurry up! We have been waiting ……….an hour. 3. We have known each other ………..2000. 4. They haven’t had any rain ………..very long time 5. That building has been there………..the 19 th century. 6. I’ve known them ……….many years. 7. My sister has been a student…………two years. 8. I haven’t seen Linh…………….my birthday party. 9. He has collected stamps…………5years. 10. My brother has worked for a company called FPT……….he graduated from university. II. Choose the best answer (A,B,C or D). 1. The Eiffel Tower is the most_______landmark in the world. A.visit B. visiting C. visited D. to visit 2. When we were in Stockholm, we had coffee and cakes______a coffee shop____the old town. A.on-on B. at-at C. in-in D. on-at 3. This is the first time that I____________ a 3D film. A.watch B. watched C. watches D. have watched 4. I_________Hue four times in all. A. visit B. visited C. visiting D. have visited 5. The red double-decker bus is London’s famous _______. A. sign B. signal C. simbol D. logo 6. Which_____is France in?-Europe. A. country B. continent C. city D. area III. Coplete the sentences with the appropriate verb form. 1. I ………………………..(do) all the housework. The flat is really clean now. 2. He ………………………(write) a novel for two years, but he …………………… (not/finish) it yet. 3. My brother …………….(leave) home 10 years ago. I ………………………(never/ meet) him again since then. 4. I like your car. How long ……………………………..(you/have) it? 5. What …………………………(you/do) last weekend? ……………………...(you/ play) golf? 6. Mai …………………….(buy) a new dress last week, but she ……………………. (not/wear) it yet. 7. Mr. Quang ………….…………(teach) math in this school since he …………….. (graduate) from the university in 1990. 8. ………………………………..(you/hear)) of Agatha Christie? She ……………… (be) a novels writer. …………………………(you/read) any of them? 9. When I ………………..(get) home last night, I …………..(be) very tired, and I …………………….(go) straight to bed. 10. Daniel………………….(earn) some money last week. But I’m afraid he ……… ………………………(already/spend) it all.

III. Give the correct form of the verbs in brackets.(10 points) 1. I‘ve decided (stop)_________ smoking. 2. I (visit)_________ Singapore two years ago. 3. Look at those black clouds. It (rain). 4.We are tired of (work)_________ for low salary. 5. This is the second time you (break)_________ a cup. 6. (you/do)_________ the homework yet? 7. Mai is in her room. She (play)_________ the guitar. 8. The teacher said that we should (not make)_________ noise in class. 9. Water (cover)_________ most of the Earth’s surface. 10. Without your advice, I (not be ) _________________successful now. IV. Fill in each blank with one suitable preposition.(10 points) 1. It’s 2.5 km______ my school______ the movie theatre. 2. I live______ Xuan Dieu street______ my grandparents 3. She is talking______ her students in the school yard. 4. My new house is different______ my old house. 5. My father is a farmer. He works______ a farm. 6. Does your aunt work______ the central hospital? – Yes, she is a nurse there. 7. I’m always busy. I must work______ early morning until night. 8. Mr. Minh is a journalist. He writes______ Tuoi Tre newspaper. V.Write the correct form of the words given in capital letters. (10 points) 1. Their children have quite________ characters. DIFFERENCE 2. My brother bought a new________ rod yesterday. FISH 3. Mr. Jane runs his business very________. SUCCESS 4. I like the city life because there are many kinds of________. ENTERTAIN 5. The scouts do the________ work. VOLUNTEER 6. Is there anything________ on TV tonight? INTEREST 7. What is the correct________ of this word? PRONOUNCE 8. My uncle often spends his free time doing volunteer work at a local________. ORPHAN 9. Relax for some minutes and you’ll feel more________. COMFORT 10. In electronics, we learn to repair________ appliances. HOUSE làm đc bn câu mình vẫn vote nha !

Xét dấu biểu thức Mn hộ e vs ạ

Trình bày phương pháp hóa học nhận biết chất khí sau:CH4, C2H4, H2, CO2

Vì sao đến năm 1929 yêu cầu bức thiết của Cách mạng Việt Nam là phải có một đảng cộng sản thống nhất trong cả nước

Mng ơi cho em hỏi bài3,4 làm sao ạ (mình hứa sẽ vote5*) em cần gấp lắm ạ

lập nhanh CTHH của các chất được tạo thành bởi: a, Sắt (III) và oxi b, Kẽm và Clo C, Nhôm và nhóm nitrat d, đồng (II) và nhóm sunfat

1 . Cho tam giác ABC vuông ở C . Gọi M,N lần lượt là trung điểm của các cạnh BC và AB . Gọi P lả điểm đối xứng của M qua điểm N . a) Chứng minh tứ giác MBPA là hình bình hành b) Chứng minh tứ giác PACM là hình chữ nhật c) Đường thẳng CN cắt PB ở Q . Chứng minh : BQ = 2PQ d) Tam giác ABC cần có thêm điều kiện gì thì hình chữ nhật PACM là hình vuông ? Hãy chứng minh? 2 . Phân tích đa thức thành nhân tử a . x ² + 4x - y ² + 4 b . 16x ³y +1/4yz ³ c . $x^{4}$ -1