user-avatar
vietviet
2 năm trước
(n^2+1).(n+3)>0 (n+4).(n+5) lớn hơn hoặc bằng 0
Thích Trả lời Chia sẻ

Các câu hỏi liên quan

Put the verbs inn brackets into the correct tense or form. 1. Everybody _____________ (cheer) and _____________ (sing) happily at the moment. 2. Sorry, I can’t come. I ________________ (be) very busy tomorrow. 3. ________________ (they/ play) football this weekend? 4. Most students ________________ (not /go) to school on Saturday. 5. You must ________________ (take) a boat ride around the island. 6. After __________ (get) up, children get dressed in new clothes and say wishes to their parents. 7. What _____________ (be) the name of your favourite TV programme? 8. Why _____________ (you/ like) this programme? 9. How often_____________ (they/ watch) it on TV? 10. What channel _____________ (be) this programme on? Part3. Supply the correct form of the words in brackets. 1. The weeks before Tet is the________________ time of the year. (busy) 2. The street is always ________________ with pedestrians and traffic. (crowd) 3. The Grand Canyon is one of the ________________ wonders of the world. (nature) 4. Is living in the city ________________ than living in the countryside? (good) 5. On the first day of Tet, we dress ________________ and go to pagodas. (beauty) 6. Red symbolizes luck and ________________.(happy) 7. Tet is coming. It’s our New Year _______________. (celebrate) 8. Easter is one of the best times for a family _______________. (gather) 9. They wish each other good _______________for the New Year. (lucky) 10. You should keep _______________by eating well and exercising regularly. (health)

I. Choose the word that has the underlined part pronounced differently from the rest. 1. A. historic B. exciting C. island D. firework 2. A. calendar B. celebrate C. decorate D. school 3. A. wonder B. compass C. brother D. forest 4. A. beach B. teach C. feather D. peaceful 5. a. clothes B. fireworks C. scissors D. mountains 6. A. programme B. any C. channel D. father 7. A. brother B. weather C. theater D. father 8. A. this B. throw C. theme D. think II. Choose the best option (A,B,C or D) to complete the following sentences. 1. People often clean and decorate their houses ________ Tet. A. during B. after C. before D. on 2. Turn left at the first traffic lights, and you’ll see the supermarket straight ________. A. away B .ahead C. aside D. again 3. Mekong River is ________ river in South East Asia. A. long B. longer C .longest D. the longest 4. You ________ speak during the exam - it’s forbidden A. should B .shouldn’t C. must D. mustn’t 5. Some of her paintings are displayed at the local ________. A. art gallery B. museum C. stadium D. hospital 6. The Vietnamese ________ Tet at different times each year. A. decorate B. watch C. celebrate D. welcome 7. ________ we go out for dinner tonight? - Great! A. Must B. Can C. Will D. Shall 8. ________ does Tet last? ~ About 10 days A. When B. How long C. What time D. How often 9. Life in the countryside is ________. There aren’t many things to do there. A. interesting B. inconvenient C. boring D. noisy 10. Lan: ‘Can you tell me the way to Tan Ky House, please?’ Mai: ‘________. Go straight, then turn right.’ A. Certainly B .Let’s go C .Good idea D. My pleasure

2018 © Loga - Không Ngừng Sáng Tạo - Bùng Cháy Đam Mê
Loga Team