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kimsothanh12345
2 năm trước
rewrite these sentences by using because of 1)she can't work hard because she is very old 2)he likes her because of she is very beautiful 3)he couldn't go to school because he was very poor 4)i can't buy this bike because i don't have enough money 5)he broke the vase because he was careless 6)he failed the exam because he didn't learn the lessons carefully 7)we can't go for a walk because it rains heavily 8)he left school because she was given a new bike 9)she was very happy because she was given a new bike 10)i went to bed early because i felt tired
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1) I (do)__________it for you tomorrow. 2) My father (call)_____________you in 5 minutes. 3) We believe that she (recover)_______________from her illness soon. 4) I promise I (return)______________to school next week. 5) If it rains, he (stay)____________at home. 6) You (take) me to the zoo next weekend? 7) I think he (not come)_______________back his hometown tomorrow. 8) She (spend) ____ all her money last week. 9) Mum (not spend) ___________ any money on herself. 10) I (lend) __________ my penknife to someone, but I can't remember who it was now. 11) John and his father (build) ___________ the cabin themselves last year. 12) My parents (sell) ____________ the stereo at a garage sale. 13) ___________You (tell) ___________ anyone about this yesterday? 14) She (tear) ___________ the letter to pieces and threw it in the bin. 15) 11. Yesterday Clouds (creep) ___________ across the horizon, just above the line of trees. 16) . He .....................to the zoo last Sunday (go) 17) She (not/ watch)....................................TV last night 18) They (meet)..............................their friends at the movie theater last week 19) What...............you (do).....................last night 20) . ........................... they (buy).....................a new car two days ago? 21) . We .............. (have) a lot of homework yesterday 22) . My mom always ................................delicious meals. (make) 23) Charlie…………………………..eggs. (not eat) 24) .Susie………………………….shopping every week. (go) 25) ................................ Minh and Hoa ................................ to work by bus every day? (go) 26) . Where……………………..he………………………from? (come) 27) Jimmy ................................. usually ................................ the trees. (not water) 28) They ................................ out once a month. (eat) 29) Be careful! The car (go) ………………….. so fast. 30) Listen! Someone (cry) ………………….. in the next room. 31) Your brother (sit) ………………….. next to the beautiful girl over there at present? 32) Now they (try) ………………….. to pass the examination. 33) It’s 12 o’clock, and my parents (cook) ………………….. lunch in the kitchen. 34) Keep silent! You (talk) ………………….. so loudly. 35) I (not stay) ………………….. at home at the moment. 36) Now she (lie) ………………….. to her mother about her bad marks. 37) At present they (travel) ………………….. to New York. 38) He (not work) ………………….. in his office now. 39) My parents ___________ (drive) to work now. 40) What ___________ the boys ___________ (do) now?

Bài 1: Thực hiện các phép tính sau: a) 3x 2 . (2x 3 – x + 5) b) (4xy + 3y – 5x). x 2 y c) 3245621xxxx d) ( 3x – 5 )( x 2 – 5x + 7 ) Bài 2: Tìm x biết: a) x.(x + 1) – x 2 + 2 = 0 b) 2.(3x + 2) – (2x + 12) = 0 c) 2x 3 (2x – 3) – x 2 (4x 2 – 6x + 2) = 0 d) (3x + 2)(x – 1) – 3(x + 1)(x – 2) = 4 Bài 3: Khai triển: a) (x + 5) 2 b) (x – 3y) 2 c) (x 2 – 6z)(x 2 + 6z) d) (x + 3y) 3 e) (2x – y) 3 c) 27x 3 + 1 d) (2x) 3 - 125 Bài 4: Viết các đa thức sau dưới dạng tích: a) x 2 + 10x + 25 b) 16x 2 – 8x + 1 c) 4x 2 + 12xy + 9y 2 d) x 3 + 3x 2 + 3x + 1 e)27y 3 – 9y 2 + y - 27 1 g) 8x 6 + 12x 4 y + 6x 2 y 2 + y 3 Bài 5. Tính nhanh: a) 153 2 + 94 .153 + 47 2 b) 126 2 – 152.126 + 5776 c) 3 8 .5 8 – (15 4 – 1)(15 4 + 1) Bài 6. Phân tích các đa thức sau thành nhân tử a) 5x(x – 2) – 3x 2 (x – 2) b) 16x 2 – (x 2 + 4) 2 c) 5x 2 – 5xy + 7y – 7x d) 3x 2 – 8x + 4 e) x 4 + 64

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