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danghuy
2 năm trước
tổng các hạt mang điện trong phân tử $XY_{2}$ là 64 .Số hạt mang điện cua nguyên tử X nhiều hơn số hạt mạng điện của nguyên tử Y là 8.Tìm công thức của hợp chất đó
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1. This reality TV show soon became a worldwide phenomenon. The underlined word has the closest meaning to: A. nation B. national C. global D. globe 2. Lan: How did she become famous ? – Minh: ...................................................... A. Yes, she became famous B. Five years ago C. She took part in a lot of contests D. It’s unbelievable that she was famous 3. He was also the first ................. artist to have four singles to enter the Top 40 A. chorus B. solo C. simple D. private 4. This figure graduated .................... a very famous music school and devoted his life to arts. A. on B. from C. of D. into 5. “They made Peter to create a Quan Ho performce” has the closest meaning to: A. Peter made to create a Quan Ho performce B. Peter was made to create a Quan Ho performce C. Peter was made create a Quan Ho performce D. Peter was created a Quan Ho performce 6. Because of it’s significance, this reality TV program has been ............... by thousand of viewers all over the country A. done B. watched C. washed D. produced 7. He was one of the most prominent .............. during the international liberation movement A. math B. numbers C. figures D. calculation 8. The football match was wonderful at the beginning, ................. it was awful at the end. A. but B. and C. or D. so 9. These days, things have become more convenient, for example, you can buy airline tickets at air agencies, ............. you can purchase the online. A. yet B. for C. so D. or 10. This will be a hopeful season of this entertainment format to air in the near future.The underlined word has the closest meaning to: A. breathe out B. breathe in C. broadcast D. inhale 11. You should feel happy because your mum and dad always encourage you ............... hard A. work B. to work C. worked D. working 12. I think that they will not agree to let you ............. out late at night. A. go B. going C. to go D. gone 13. He is looking forward ................... this result from this contest. A. receive B. receiving C. to receive D. to receiving 14. It took my teacher nearly 3 years ............... his rearch on motivating students in learning English by using word games. A. complete B. to completing C. completed D.to complete 15. Choose the word whose underlined part is pronounced differently from the others. A. request B. protest C. nest D. harvest 16. Lately, several oils, including rose and lemon have been shown .................. anxiety, stress and depression. A. relieve B. to relieve C. to relieved D. to relieving 17. Choose the answer which needs correcting: Her fans admit that her voice is beautiful, and her performance is not skillful A B C D 18. Choose the answer which needs correcting: Three days ago, Mary asked her teachers give her some advice A B C D 19. Choose the word whose underlined part is pronounced differently from the others. A. confident B.indent C. measurement D. encouragement 20. Choose the word whose underlined part is pronounced differently from the others. A. accurate B. concentrate C. penetrate D. accommodate

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