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leanhb
2 năm trước
(2x + 1)(3-x) +4=0 làm bài này giúp mks nha dạng là phương trình bậc 2 một ẩn
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Ex 1:Rewrite the sentences, using the adjectives+Noun clause structure. 1. You want to know more about him. I am very pleased. → I am (very) pleased that you want to know more about him. 2.You are interrested in protecting environment. He is delighted. =>......................................................................................... 3. They could save some money from reused things. They are very happy. =>......................................................................................... 4. My class won the first prize in collecting cans. My teacher felt pleased. =>......................................................................................... 5. The rivers are becoming heavily polluted. We are worried. =>......................................................................................... 6. The Y & Y is having a plan on recycling used paper. I am very glad. =>.........................................................................................

I. Write the plural form of each noun in brackets. 1. There are many _________________ (thief) in the big cities. 2. We should throw away these old _________________ (tooth brush). 3. Did you buy two silk _________________ (scarf) for your sister? 4. The _________________ (chief) of those tribes decided to fight for their lands. 5. You shouldn't base your argument only on your _________________ (hypothesis). 6. We can't question people's _________________ (belief). 7. Two _________________ (wolf) are following the eskimo. 8. A lot of _________________ (person) speak English. 9. Jill has two _________________ (child). 10. There are a lot of _________________ (fish) in the river. 11. The _________________ (leaf) are falling from the tree. 12. There are three _________________ (dictionary) on the table. II. Complete the following sentences with the correct tenses of the verbs in brackets. 1. A :I (think) __________________ of buying a new computer. B: But computers (cost) __________________ so much money . What's wrong with the one we've got? A: It (get) __________________ out of date now. 2. Guess what! I (see) __________________ Alan at the station yesterday. 3. (you/hear) __________________ your results yet? 4. Great news! I (pass) __________________ my exams! 5. She (read) __________________ the book you lent her. In fact, she (stay) __________________ up until 3 a.m last night to finish it! 6. (you/ ever/ play) __________________ golf? ~ Yes, I often play golf 7. Sue (travel) __________________ a lot. Today she is in Madrid. Tomorrow she (be) __________________ in Rome. 8. I don’t think it (rain) __________________ this afternoon. 9. Oh dear! It’s 9 o’clock and I’m not ready. I (be) __________________ late. 10. She (be) __________________ in Ireland for three days.

Ex 4:Rewrite the sentences using the adjective + to infinitive structure. 1.I passed all the exams. I am happy. → I am happy to pass all the exams. 2.We are going to clean the environment. We are ready. =>......................................................................................... 3. Keeping people from litttering is very difficult =>......................................................................................... 4. They hear about the plan to collect the used boxes. They are surprised. =>......................................................................................... 5. Being able to live in a clean environment is lucky. =>......................................................................................... 6. She must empty the kitchen garbage. She is not pleased. =>.........................................................................................

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