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nhungpop
2 năm trước
cho 3 số thực dương a,b,c.CMR 1 + 3/(ab+bc+ac) >=6/(a+b+c))
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B. Read the text carefully, then choose True (T ) or False ( F ) David lives in Canada. He usually gets up early and does morning exercise with his bike. He rides around his area. After breakfast, he takes a bus to school. He has lessons from 9.00 am to 1.00 pm. He often has lunch in the school canteen and then he has a short rest. In the afternoon, he has lessons in the library or PE in the gym. After school, he often goes to the sports center near his house and plays basketball or table tennis. In the evening, he often does his homework. Sometimes he surfs the Internet for his school projects. He often goes to bed early. 1. David lives in Canada. ……………… 2. He often rides a bike in the morning. ……………… 3. His classes start at 10 o’clock in the morning. ……………… 4. In the afternoon, he does his homework ………………. IV. DO AS DIRECTED 1.Make question for the underline word: a. Tom plays tennis every Friday. → How often.......................................................................? b. No, He didn’t go to the cinema last night. → .......................................................................? 2. Rewrite: No student is more intelligent than Mary in our class. → Mary is ...........................................................

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