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anhnhanthtl2011
2 năm trước
Dịch các câu sau sang tiếng Anh 1) 1 bể nước chứa 1000 lít. 1 vòi chảy ra mỗi phút chảy 40 lít a) Viết hàm số biểu thị lượng nước y còn lại trong bể sau x phút b) Tính lượng nước còn lại trong bể sau 10' c) Sau bao lâu trong bể không còn nước? 2) Cho A= 2x ² - 3x - 2 $\frac{4x ² - 8x ³ + 3x - 6}{2x ² - 3x - 2}$ a) Rút gọn A b) Tìm giá trị nguyên của x để A có giá trị nguyên
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Exercise 1 1.Mr Wilson …….very hard every day. a.works b.working c.has worked d.worked 2.They …..here in ten minutes. a.come b.came c.will come d.have come 3.The boy…. home an hour ago. a.come b.came c.will come d.must come 4.The sea …two thirds of the earth. a.cover b.will cover c.is covering d.covers 5.Alexander Graham Bell first …the telephone in 1876. a.introduce b.introduced c.has introduced d.introduces 6.My grandfather ….when….I …only 2 years old. a.dies/ am b.dies/was c.will die/am d.died/was 7.Can we meet at 7 o’clock tomorrow ? Yes, I …. you up at 7. a.will pick b.pick c.picking d.am picking 8.Quang … a fishing rod yesterday because he likes going fishing. a.buy b.was buying c.bought d.did buy 9.When I …for school this morning, it….so I used my umbrella. a.leave/rained b.left/was raining c.was leaving/rained d.was leaving/ was raining 10.Pierre…French for several years. a.has learnt b.learnt c.is learning d.learns Exercise 2 1.Alexander Graham …. In Edinburgh. a.is born b.born c.did bear d.was born 2.I bought this dress yesterday.It …200 VND. a.costs b.cost c.was cost d.has cost 3.I… my family since I … to Ho Chi Minh City. a.didn’t see/moved b.don’t see/ move c.am not seeing/moved d. haven’t seen/ moved 4.While Diana ……… her favourite television program, there was a power cut. a.was watching b.watched c.has been watching d.is watching 5.What exactly … when I came into your office yesterday? a.did you do b.were you do c.were you doing d.are you doing 6.The Earth …. Around the sun. a.moves b.is moving c.moved d.was moving 7.My sister .. very happy when she … my gift on her last birthday. a.is/gets b.is /got c.was / got d.was/get 8.He … to smoke a lot 10 years ago.He … it up last year. a.used/gives b.used/gave c.has used/has given d.uses/gave 9.I don’t have to take any more math classes.I… all the required courses. a.already took b.am already taking c.have taken already d.have already taken 10.He is a millionaire now.He…. to be rich before. a.used not b.wasn’t use c. didn’t use d.doesn’t use

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