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Rút gọn các biểu thức sau 1) –5x(x - 3)(2x + 4) – (x + 7)(x- 3) + (5x – 2)(3x + 4) 2) (4x – 1)(3x + 1) – 5x² (x – 3) – (x – 4)(x – 3) – 7(x² - 2x² + x -1) giúp mik với mn ơiiiiii
Exercise 12. Choose the word or phrase among A, B, C or D that best fits the blank space in the following passage. Rescue robots (1) hi-tech toys, but we are now using more robotic planes, helicopters. We can use them after storms, earthquakes, or fires to provide us with important (2) . They have cameras and microphones that help rescue workers understand how much damage (3) and (4) where the victims are. These planes work (5) between 30 and 120 metres in the air and they can rescue people in somewhere very dangerous. 1. A. look B. look like C. looks like D. look at 2. A. information B. newspapers C. ideas D. thing 3. A. there B. it was C. there has D. there is 4. A. find B. find out C. finds D. finds out 5. A. much B. more C. the best D. best Exercise 13. Choose the word or phrase among A, B, C or D that best fits the blank space in the following passage. Last month Lan's father (1) her to a glass factory. They visited the recycling workshop where the broken glass was smashed (2) small pieces, and the glass was washed with a particular detergent liquid. After that, it was dried up and mixed (3) some chemicals. The mixture was put into a very (4) temperature furnace to melt into liquid. The workers in the factory used long pipes (5) the liquid into a variety of shapes. All the glassware looks nice. Lan was very impressed by the journey. 1. A. asked B. took C. told D. gave 2. A. under B. into C. in D. on 3. A. in B. of C. up D. with 4. A. high B. strong C. low D. weak 5. A. change B. to make C. to blow D. to have Exercise 14. Complete the passage with the words given in the box. waste surprised resources recycling ton labor thrown discussion requires preserved Ba's class has a (1) on waste paper. His friends are so (2) to learn that every day throughout the world, millions of newspapers and paper bags are (3) away. People are collecting waste paper and (4) it. Making paper (5) a lot of trees and labor. Now if people don't (6) paper, they can save (7) and money. Especially, people can save the natural (8) . For every (9) of recycled newsprint, ten trees can be saved. The more paper people save, the more natur
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Exercise 10. Complete the passages with the words from the box. what recycled protect later throw waste reuse natural How people can help with recycling? As inhabitants of the earth we all have a duty to (1)________ the environment. We should contribute to environmental protection by finding new ways of using products we (2)________ away. Nowadays recycling is an industry. As the world’s (3)________ resources run out, manufacturers must find ways of reusing products. (4)________ can we do to help our environment? ♦ We can sort our (5)__________ by separating it and then taking it to the appropriate recycling bins. ♦ We can (6)__________ things such as jars and envelopes. ♦ We can buy (7)__________ products like stationery. ♦ We can transform our waste food into a fertilizer which we may use as compost for our gardens (8)__________ Exercise 11. Read the passage, and then fill in each blank with ONE appropriate word. produce I would like to live in one of the (61) modern houses in the world. It will produce all the energy it needs from the (2) energy, the wind energy, but not from gas, or oil. There will be modern electronic (3) in the kitchen such as a smart refrigerator, a dishwasher, a microwave oven, and so on. The house will also have a hi-tech TV that helps us to watch TV programmes from space. A home robot will be able to do all of (4) , so our life will become more comfortable than ever (5) . 1. A. much B. more C. most D. almost 2. A. sun B. solar C. sunny D. cloudy 3. A. appliances B. tools C. machines D. equip 4. A. housework B. the housework C. homework D. the homework 5. A. until B. after C. before D. then
Chỉ cần làm abc thôi ạ cảm ơn nhiều
Biểu diễn số hữu tỉ 3/2 trên trục số
1/What does Jessica say about her life at school? 2/What did Jessica do when she left school? 3/What does she say about her working life? 4/Why does Jessica like working? 5/Which of the following is the best description of the writer? A.The comedian who never stops laughing herself B.The funny person who loves her work but never has time to relax C.The sucessful comedian who is always looking for news ideas D.The popular star who loves being on TV more than anything else
Mọi người giúp mình với ạ mình đang cần gấp lắm rồi ah
1. We reach Sally’s house now because we didn’t ask for direction earlier ……………………………………………………………… 2. Since he is an only child, his parents have spoiled him ……………………………………………………………… 3. Bob didn’t learn Chinese in high school, so he doesn’t have many job opportunities. ……………………………………………………………… 4. I am not rich. I didn’t buy that house last month. ………………………………………………………………
a ra~ vẽ hộ tui cái avatar chibi ik hình dáng: - mái tóc thì giống của bé bức dưới ha - tóc dài ngang lưng, màu trắng nhen - Còn trng phục thế nào thì tuỳ nhen:) Y/c: - Tô màu,line - ko tranh cũ - digi - ko phạm luật hoidap - 2 bức: + 1 bức chụp ko kí ha + 1 bức chụp có kí nha - Vẽ cute vô nhé >< NL: tèn ten~ đã tô màu:)) nhưng hơi fail :(((((
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