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Cho dãy số: 3; 8; 13; 18; ... a) Tính tổng 100 số hạng đầu tiên của dãy b) Số 158 là số hạng thứ bao nhiêu của dãy giải theo cách dễ hiêu nhất dành cho cấp 1 nha
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I/ Complete the conversations. Put in a to-infinitive ỏ an ing-form 1. A: Are you going to organize our trip? B: Yes, of course. I've agreed ________ it 2. A: You wear a uniform at work, don't you? B: Yes, I have to, although I dislike ________ it 3. A: Do you think they'll approve the plan? B: Yes, I'm quite sure they'll decide ________ it 4. A: What time will you be back? B: Oh, I expect __________ back sometime around nine. 5. A: Did I remind you about the dinner tonight? B: Yes, thank you. You keep _________ me. 6. A: Was your decision the right one, do you think? B: Yes, luckily. In the end it proved _________the best thing for everyone. 7. A: Do you still work at the post office? B: No, I gave up ______ there last year. 8. A: Have ICM bought the company? B: Well, they've offered_______it. 9. A: I'm sorry you had to wait all that time.' B: Oh, it's all right. I don't mind ______ it II/Put the verb into the correct form 1. I don't mind _______(walk) home but I'd rather ______(get) a taxi. 2. I can't make a decision. I keep ________(change) my mind. 3. He had made his decision and refused _______ (change) his mind. 4. The film was very sad. It made me ___________(cry). 5. It was a really good holiday. We really enjoyed ______(be) by the sea again. 6. They don't have much money. They can't afford_____(go) out very often. 7. Did I really tell you I was unhappy? I don't remember _______ (say) that. 8. Remember __________(phone) Tom tomorrow. III/Put the verb in the correct form, present simple or present proressive 1. A: What___________(you/ do)? B: I____________(write) to my parents. I ___________(write) to them every weekend. 2. A: Look, it________(snow). B: It's beautiful! This is the first time I've ever seen snow. It __________(not snow) in my country. 3. A: Oh, that's Adrian. He's new here. B: Really? Where ______________(he/ live)?_______(you know)? A: Yes. He ________ (live) in Milan, but now he _________(stay) with his aunt on Shirley Road. 4. A: What time_________ (you/ usually/ finish) work? B: Normally I_________(finish) work at five o'clock, but this week I ____________(work) until six to earn a bit more money. 5. A: How__________(you/travel) to work? B: I haven't got a car at the moment, so I ________(go) to work on the bus this week. Usually, I ______(drive) to work. 6. A: I think we're going the wrong way. B: I don't think so. The sun _________(rise) in the east, remember. It's behind us, so we_________ (travel) west. 7. A:___________(you look) for someone? B: Yes, I __________(need) to speak to Neil. Is he in? A: Yes, but I _________(think) he's busy. He ___________(talk) to the boss at the moment. 8. A: I_ ________(want) a new computer. I ________(save) up to buy one. B: But computers________ (cost) so much money. What's wrong with the one we've got? A: It_______(get) out of date now. 9. A: Your new dress________(look) very nice. B: Thank you. The trouble is it________(not/fit) properly. I _______(not/know) why I bought them, really. 10. A: What________ (you do)? B: I________ (taste) the sauce. It_______(taste) too salty.

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