a,( 25 : 5 mũ 2 . 30 ) : 15 .7 b, ( 64 : 2 mũ 4 . 16 ) 32 . 48 c,( 81 : 3 mũ 3 .15 ) : 9 . ( 40 : 8. 2 ) giúp mình với nhé

V. Read the following passage and answer the questions below. Tropical rainforests are found in Amazon region of South America, Central America, Africa, and Southeast Asia. Rainforests are very important to the world's climate. The Amazon rain forests alone receive about 30 to 40 percent of the total rainfall on the earth and produce about the same percentage of the world's oxygen. Some scientists believe that the decreasing size of rainforests will affect the climate on the earth, making it uncomfortable or even dangerous for life. Saving our rainforests is an international problem. One country or even a few countries can not solve the problem alone. The nations of the world must work together to find a solution : giải pháp before it is too late. Questions • Where are tropical : thuộc nhiệt đới rainforests found? ………………………………………………………………… • How are rainforests to the world's climate : khí hậu? ……………………………………………………… 3. How many percent of the world's oxygen does Amazon rainforests produce? ……………………………………………………………………………………………………. 4. What do scientists think about the decreasing size of rain forests? ……………………………………………………………………………………………………. 5. Is saving ( save : gìn giữ) our rain forests only a national problem? ……………………………………………………………………………

giup minh voi a , minh dang can gap

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III. Circle the mistake and correct it 1. On winter days, we all used to sit around the fire and told stories. ___________ A B C D 2. The Chinese build the Great Wall over two thousand years ago. ___________ A B C D 3. We get used to live in the countryside before we moved to Ho Chi Minh City. ___________ A B C D 4. In the modern world, people can easily communicate with telephone, radio, and computer. ______ A B C D 5. The package contain : chứa đựng books and records were delivered last week. ___________ A B C D

sắp xếp câu sau: blue / a (an) / umbrella/big /expensive / american

II. Rewrite the sentences. 1. Can I move the refrigerator?  Would you mind if I………………………………………………………………....….? 2. Could I sit here?  Do you mind if I……………………………………………………………………….? 3. May I ask you a question?  Would you mind If I…………………………………………………………...………? 4. Could I turn the radio on?  Do you mind …………………………………………………………………….……? 5. Could I borrow your dictionary?  Do you mind if I ………………………………………………………………………? 6. Can you take me a photograph?  Would you mind ………………………………………………………………………? 7. Could you wait for a moment?  Would you mind ………………………………………………………….…………….? 8. Will you post this letter for me?  Do you mind …………………………………………………………………….……?

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