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tính √( 7 - √6 ) - √( 7 + √6 )

a) 1 < Giá trị tuyệt đối X [X] < 3 B) ( 5 - x ) . ( 8 - x ) < 0

Giải chi tiết giúp mình câu này.Cảm ơn mn

31.If I ______ in your shoes, I’d take it easy and try to forget it. a.are b.am c.were d.have 32.. They keep changing the decoration of the shop ______they can attract more young people. A. so that B. because C. although D. when 33.Minh is ________the most successful student in my class. A. so long B. by how C. by far D. so now 34.My grandfather is the____oldest artisan in the village; Ngoc's grandfather is the oldest A. first B. second C, most D. one 35.. Lan couldn't decide________to work with on the project. A. who B. what C. how D. when 36. . She has taught English here ________ 10 years. A. in B. for C. since D. from 37. I have always been ____ by the beauty of the city. a. attraction b. attracted c. attractive d. attracting 38. These basket are woven by _______ a. artists b. worker c. artisans actors 39. The Perfume Pagoda _ during the reign of Le Thanh Tong in the 15th century. a. built b.was built c. is built d. were built 40. My leg started to hurt when I ___football. a. played b. am playing c. had played d. was playing

EX4: Choose the best answer 1. If I ............. you, I would apologize to her right away. (to be) A. was B. were C. have been 2. If I run into her, I ............. her that you're looking for her. (to tell) A. would tell B. tell C. will tell 3. If you ............. that again, I will call the police. (to do) A. to do B. do C. will do 4. He would never have asked her out on a date if she ............. him first. (to kiss) A. hadn't kissed B. didn't kiss C. will not kiss 6. If she hadn't gone to England, she ............. Orlando Bloom. (to meet) A. would not meet B. did not meet C. would not have met 7. If it doesn't start snowing, we ............. this evening. (to go skiing) A. won't go skiing B. wouldn't go skiing C. don't go skiing 8. If I ............. at the airport so late, I would not have missed my flight. (to arrive) A. didn't arrive B. hadn't arrived C. would not arrive 9. If you buy one t-shirt, you ............. the second one free. A. will have gotten B. would get C. get EX5: Choose the best answer 1. If I lose my job, I ............. for a new one. (to look) A. will look B. would look C. look 2. If she hadn't told me to stay, I .............. (to go) A. will go B. would have gone C. would go 3. She ............. to come to the party if she had known that her ex-boyfriend would be there. (to agree) A. would not agree B. did not agree C. would not have agreed 4. If you come tonight, I ............. enchiladas. (to make) A. will make B. would make C. will have made 5. If I were him, I ............. that job. (to take) A. did take B. will take C. would take 6. He will never speak to me again if he ............. what happened. (to find out) A. will have found out B. finds out C. would find out 7. Our cat ............. you if you rub her belly. (to bite) A. will bite B. would bite C. would have bitten 8. I ............. you if I hadn't thought it was important. (to tell) A. will not tell B. wouldn't have told C. would not tell 9. If I ............. you were coming, I would have prepared lunch. (to know) A. knew B. had known C. will know 10. If I were you, I ............. to the beach instead of going to work. (to go) A. will have gone B. will go C. would go giúp em với mọi người ơii

IIFind the work which has a different sound in the underlined part

21.Do you think that the various crafts remind people _____ a specific region? A. about B. of C. for d. in 22._____ this hand-embroidered picture was expensive, we bought it. A. As B. Because C. Even though D. In spite of 23.This department store is an attraction in my city _____ the products are of good A. when B. because C. though D. so that 24.I look forward to _____ you soon. A. see B. seeing C. seen D. to seeing 25.. You’re not a safe driver! You should drive ______. A. careful B. careless C. more carefully D. more carlessly 26.. She lives in one of the most ______ parts of the city: there are lots of luxury shops there A. fashionable B. historic C. comfortable D. cosmopolitan 27.China is _____ far the most populated country in the world. A. as B. by C. so D. second 28.I wish my parents could put themselves in my ______ a.situation b.shoes c.feelings d.heart 29.Your friend stayed up late studying for an important exam. a. Well done! c.I know how you feel b.Stay calm. Everything will be all right. c.A really great job. 30.Six people applied for the job, but four of them were ______ a.turned down b.turned up c.turned on d.turned off

He just can't ______________ without cigarettes. make go do pass Martin paints pictures, but he doesn't ___________ his life that way. He works in a big store. make do take pay

11.When I arrived at school, the school yard was already packed _____ new students. A. with B. at C. to D. of 12.: I have no idea _____ to do on the weekend. A. how B. what C. who D. where 12.: I’m bored with studying in class now. I wish I _____ bushwalking with my friends. It would be fun. A. were going B. had gone C. am going D. go 13.Nothing is _____ than getting stuck in a traffic jam. A. worse B. more badly C. better D. bad 14..Choose one word whose stress pattern is different from the others A. comprise B. depend C. design D. listen 15.Choose the word in which the underlined part is not pronounced the same as those in the other words of the group A. cleaned B. repaired c. danced d. planned 16.My friend has been studying very hard for the exam, but she still feels _____ a. relaxed b. delighted c. tense d. embarrassed 17.I couldn't concentrate on my lesson .............................. I was very tense. a. so that b. as c. when though 18.You don't need the fan on in the classroom. .............., please. a. turn off it b. turn it on c. turn it off d. turn it down 19.Ha Noi is ................................... city in our country. a. the two biggest b. the biggest second c. the second bigggest d. second biggest 20. He wondered ...................... his parents what he really thought. a. if to tell b. that to tell c. who to tell whether to tell