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nguyenvuson
2 năm trước
C/m: a+b = 1 thì a ²+b ² ≥ $\frac{1}{2}$
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.I Underline the best word or phrase to complete each sentence (3.0ms) 1. Nam used to (walk/ walking / walks/ walked) to school, but now he rides his bicycle. 2. We enjoyed our camping holiday (in spite/ despite / although/ even) it rained every day. 3. Trung likes watching (comedy/ documentary/ horror film/ drama). He thinks it’s gripping even though it’s really scary. 4. Renewable source of energy such as ( wind/ coal/ oil/ natural gas) will be used by many countries in the world. 5. I was born (in/ on/ at/ to) August 15th. . 6. There are thousands of good (perform/ performance/ performers/ performing) in the Samba parade in Rio Carnival. 7. Ha’s hat is blue, (my/ I/ you/ mine) is white. 8. Overpopulation is causing (less/ more/ fewer/ the most) problems than we can imagine. 9. (Water/ Coal/ Wind/ Solar energy) is a non- renewable source of energy. 10. You must wear a (cap/ hat/ helmet/ mask) when you drive a motorbike. 11. Choose the word which has different stress pattern from the others: (criminal/ major/ negative/ direct) 12. Choose the word whose underlined part is pronounced differently from the others: (disaster/ violent/ hilarious/ film)

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