Công thức phân tử của hợp chất X có công thức là CxOy. Biết trong phân tử có 3 nguyên tử có tỉ hơi đối với không khí là 1,52. Xác định công thức phân tử của X

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Chuyển sang câu gián tiếp 6. “Will we read the story?” Billy asked his teacher → ............................................................................................................................................................................................... 7. “Can you speak more slowly? I can’t understand,” he said to me → ............................................................................................................................................................................................... 8. “Shall I help you with the exercises?”, he said. → ............................................................................................................................................................................................... 9. “How far is it from here to college?” John asked. → ............................................................................................................................................................................................... 10.”Don’t swim too far, boys” Mrs.Hana said. → ...............................................................................................................................................................................................11. “Do you often have breakfast at 6:30”, Kim said to Jen. → ............................................................................................................................................................................................... 12. “Remember to wake me up, Tim” she said. → ............................................................................................................................................................................................... 13. “Why won’t you go camping this Sunday?” he said to me. → ............................................................................................................................................................................................... 14. “What time does John get up?”, he asked me. → ............................................................................................................................................................................................... 15. “Can you drive your bike to school, Lan?” her teacher asked. → ............................................................................................................................................................................................... 16. “Don’t put your elbow on the table”, he said to me. → ............................................................................................................................................................................................... 17. She asked me “How often do you go to the supermarket?” → ............................................................................................................................................................................................... 18. Jane said to Bill, “When do you expect to finish your assignment?” → ............................................................................................................................................................................................... 19. .”Who has written this note?” the boss asked the secretary. → ............................................................................................................................................................................................... 20. “Listen to me and don’t make a noise,” said the teacher to his students → ...............................................................................................................................................................................................