Học sinh của một lớp 7 quyên góp tiền ủng hộ đồng bào bị thiên tai. Số tiền góp của mỗi bạn được thống kê trong bảng dưới đây (đơn vị là nghìn đồng): 10 5 3 5 10 3 5 10 5 5 2 10 15 2 20 5 5 2 3 5 2 5 3 10 15 3 5 15 10 5 10 2 5 2 10 3 5 3 20 5 10 15 3 5 10 Em hãy cho biết Rút ra một số nhận xét. Số học sinh ủng hộ trên 5 nghìn chiếm tỉ lệ bao nhiêu

V.Fill in each blank with ONE appropriate word. 1.On the first day of Tet, people often go to ………………………to pray for a good new year. 2.If you visit England, you can go see Buckingham ……………………………………..…….. 3.I think that good health is……………………………………………..important than money. 4.I’m just going to the…………………………………… to buy some medicines and bandage. 5.You should put ……………… on your skin to protect it from the harmful effects of the sun. 6.Titov island in Ha Long Bay was named …………… a Russian cosmonaut, GhermannTitov. 7.The Sahara is the third…………….……………………………………….desert in the world. 8.Minh’s father is a farmer. He works on the ……………………….………………………… 9.Mary and I would like to ………………………….……………. English speaking club. 10.Lan can’t reach the book on the shelf……………………………………………..she is short. VI. Write the correct form or tense of the verbs in brackets. 1.Vietnamese people …………………..……….. (celebrate) Lunar New Year every year. 2.This Tet, my family ……………………………(not buy) Chung cakes. We will make them. 3.We usually ………….….(stay) at home on holiday, but this holiday we …………. (travel) abroad. 4.You shouldn’t ……………….………………….(wear) white clothes on the first day of Tet. 5.People spend a few days ……….……………………………(clean) their houses before Tet. 6.Tet …………………….…………………………..(occur) in late January or early February. 7.Miss Helen (help)…………………… us as soon as she (finish)...................................that letter. 8.Phong loves ………………………………………………...(eat) traditional food during Tet. 9.You must …….…………………………………….……(take) a boat ride around the island. 10.After …..…… (get) up, children get dressed in new clothes and say wishes to their parents. VII. Use the given words to write the complete sentences. 1.Vietnamese people / often / clean / decorate / houses / Tet. ………………………………………………………………………………………………… 2.Angel Falls / Venezuela / high / waterfall / the world. ………………………………………………………………………………………………… 3.It / very / interesting / take / boat trip / the Perfume River. ………………………………………………………………………………………………… 4.Which / dry / Sahara Desert / or / Atacama Desert? ………………………………………………………………………………………………… 5.Ha Noi / capital / Viet Nam. It / history / more than 1,000 years. ………………………………………………………………………………………….……… 6.Eat / and / talk / friends / be / most common ways / relax / recess / many countries. ………………………………………………………………………………………………… 7.Could / tell / how / get / police station / please? ………………………………………………………………………………………………… 8.How much / cost / mail / letter / USA? ………………………………………………………………………………………………… 9.What time / Mai / usually / go / school ? ………………………………………………………………………………………………… 10. This exercise / not / so / difficult / that one. ………………………………………………………………………………………………… VIII. Complete the second sentence so that it means the same as the first one. 1.Shall we go to the Japanese Covered Bridge first? Let’s …………………………….…………………………………………..…….…………! 2.No one in the office is cleverer than Mr. Edward. Mr. Edward ………………………………………………………………………..…..……. 3.Travelling abroad for a holiday is much more expensive than travelling in your country. Travelling in your country………………………………………………….………………… 4.She goes to work at eight forty-five. She goes to work at fifteen ………………………..……………….……………..……….. 5.Would you mind telling me the way to the National Museum? Can………………………….………………………………………………………, please? 6.Vietnamese students have fewer vacations than American ones. American students ……………………………….………………..…………..……………… 7.It’s against the rules to use your mobile phone in class. You……………………………………………………………..…………………..…………. 8.We have a two - month summer vacation. Our summer vacation lasts……………………………….………………………………...… 9.It’s a good idea to listen to the weather forecast before going camping. You ……………………………………………..……………………………………………. 10. Nam isn’t so good at English as Minh. Minh ……………………………..than Nam. IX.Read the passage then do the tasks below. Hi! I am Nam. I’m twelve years old. I’m a student in grade 6, class 6A2. I live with my parents and my sister. We live in a small house in the country. This is my school. It is small and old but it is beautiful. In front of the school, there is a big yard. It is clean and there are many tall trees and beautiful flowers. In the afternoon, I often play soccer with my friends there. My school has fifteen classrooms and six hundred students. There are forty-three teachers in my school. They are good teachers. I love them and I love my school very much. a. Answer the questions. 1.Where does Nam live?  ………………………………………………………………………………………………. 2. Are there many tall trees and beautiful flowers in the school yard? …………………………………………………………….…………………………………. 3. How many teachers does his school have? ……………………………………………………………..…………………………………. b. Complete the sentences, using the information from the passage above. 4. ………………….…………………………….…………is small and old but it is beautiful. 5. In the afternoon, Nam often plays soccer with his friends in the ……..…………

Nhận biết các dung dịch đựng trong các lọ riêng biệt sau bằng phương pháp hóa học: KOH, KBr, HCl, HNO3, KF

giúp mk , mk cần gấp mk vote 5 sao cho người đầu tiên trả lời cho góc nhọn xAy < 60 độ . Trên các tia Ax , Ay lần lượt lấy hai điểm B , C sao cho AB = AC và AB > BC . Vẽ BM vuông góc AC tại M , CN vuông góc AB tại N . a) C/m tam giác MAB = tam giác NAC và tam giác AMN cân b) gọi K là giao điểm BM và CN . C/m AK là phân giác góc BAC c) C/m AK > CK

Một ca nô xuôi dòng từ A đến B rồi ngược dòng từ B về A.Thời gian xuôi dòng ít hơn thời gian ngược dòng là 40 phút bt vận tốc dòng nc là 3km/h,vận tốc ca nô là 27km/h.Tính AB

Giúp mk bài 19 nha mn . Ai làm đc mk cho 5 sao

Trường hợp nào công sinh ra là công cản

một dây dẫn gặp lại thành khung có dạng tam giác vuông cân ACD (A=90•) khung dây đặt trong từ trường đều có B=0.01T vecto B Vuông góc mặt phẳng khung dây AD= AC=10cm. Cho dòng điện 10A vào khuôn xác định lực từ tác dụng lên các cạnh của khung dây

I. Choose the word whose underlined part is pronounced differently from that of the others in each group. 1.A. peaceful B. pleasure C. sleepy D. cheap 2.A. blossom B. chess C. messy D. passion 3.A. clothes B. fireworks C. scissors D. mountains 4.A. stadium B. place C. paddy D. lake 5.A. lunch B. music C. unpopular D. study II. Complete the sentences below using the correct form of comparative or superlative adjectives. Ex: - Lan is Hoa. (tall) Lan is taller than Hoa. - Nam is student in his class. (young) Nam is the youngest student in his class. 1. A new house is ……………………………… an old one. (expensive) 2. Motorbikes are ……………………………… bicycles. (fast) 3. My television is ……………………………… his television. (modern) 4. Summer is ……………………………… Spring. (hot) 5. Jane is ……………………………… her sister. (beautiful) 6. Skirts are ……………………………… dresses. (cheap) 7. Her English is ……………………………… my English. (good) 8. A bicycle is often ……………………………… a car in busy cities. (convenient) 9. Nile River is ……………………………… river in the world. (long) 10.This book is ……………………………… of these books. (interesting) 11. Ho Chi Minh City is ……………………………… city in Viet Nam. (big) 12.They are ……………………………… students in my class. (good) 13.These houses are ……………………………… in the village. (beautiful) 14.Winter is ……………………………… season in the year. (cold) 15.Airplane is ……………………………… means of transport. (fast) III. Give the correct form of the verbs in the simple future. 1. ……………………………… (they / come) tomorrow? 2. When ……………………………… (you / get) back? 3. If you lose your job, what……………………………… (you / do)? 4. They ……………………………… (do) it for you tomorrow. 5. My father ……………………………… (call) you in 5 minutes. 6. ……………………………… (she / get) the job, do you think? 7. We believe that she ……………………………… (recover) from her illness soon. 8. What ……………………………… (the weather / be) like tomorrow? 9. I promise I……………………………… (return) from school on time. 10. ( you / show )……………..me how to operate the new machine, please ? IV. Fill in the gap with should/ shouldn’t/ must/ mustn’t : 1.I don’t think you ………………………eat so much chocolate. It’s bad for your health. 2.I think waiters………………………………try to be pleasant with customers. 3.If you feel sick, you ……………………………… stay at home. It’s better for you. 4.I ……………………………… get my hair cut. I don’t like long hair. 5.We ………………………… go home. My mother has told me to arrive at ten o’clock. 6.I ……………………………… study hard. I want to pass the exam. 7.You ……………………………… accept things from strangers! 8.You ……………………………… steal things from shops. 9.Children ……………………………… eat junk food every day. 10. There is a ''No turn left'' sign. You ………………………..turn left

mong giải giúp em, câu nào cũng đc!