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nguyenvothienphong0309
2 năm trước
đốt chấy hoàn toàn m (g) hỗn hớp A cần dùng 11,2 lít khí oxi, thu được 8,8g CO2 và 5,4g H2O. Ở đktc 2,241l khí A có khối lượng 5,8g. Xác định CTPT và CTCT của A
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Read the passage and answer the following sentences. A COLD WELCOME On Wednesday evening, we went to the Town Hall. It was the last day of the year and a large crowd of people had gathered under the Town Hall clock. It would strike twelve in twenty minutes' time. Fifteen minutes passed and then, at five to twelve, the clock stopped. The big minute hand did not move. We waited and waited, but nothing happened. Suddenly someone shouted “It's two minutes past twelve! The clock has stopped!” I looked at my watch. It was true. The big clock refused to welcome the New Year. At that moment, everybody began to laugh and sing. 31. Where did they go on Wednesday evening?  They ________________________________________________________________________ 32. Was it the first day of the year?  No,__________________________________________________________________________ 33. What time did the clock stop?  It ___________________________________________________________________________ 34. Did the big minute hand move?  No,__________________________________________________________________________ 35. What did everyone begin to do at that moment?  They ________________________________________________________________________ Rewrite the following sentences as directed. 36. My teacher drives a car to school every day.  My teacher goes _______________________________________________________________ 37. Tim is the tallest in his family.  No one in Tim’s family__________________________________________________________ 38. I spend two hours a day doing my homework.  It takes me ____________________________________________________________________ 39. He is a slow and careful driver.  He drives _____________________________________________________________________ 40. Nam was late for school because he got up so late. (make question for the underlined part)  Why _____________________________school? ---THE END--- ANSWER KEYS 31. Where did they go on Wednesday evening?  They went to the Town Hall. ____________________________________________________ 32. Was it the first day of the year?  No, it wasn’t. _________________________________________________________________ 33. What time did the clock stop?  It stopped at five to twelve. ______________________________________________________ 34. Did the big minute hand move?  No, it didn’t.__________________________________________________________________ 35. What did everyone begin to do at that moment?  They began to laugh and sing. ___________________________________________________ Rewrite the following sentences as directed. 36. My teacher drives a car to school every day.  My teacher goes to school by car every day. ________________________________________ 37. Tim is the tallest in his family.  No one in Tim’s family is taller than him. __________________________________________ 38. I spend two hours a day doing my homework.  It takes me two hours a day to do my homework.____________________________________ 39. He is a slow and careful driver.  He drives slowly and carefully. ___________________________________________________ 40. Nam was late for school because he got up so late. (make question for the underlined part)  Why was Nam late for school?

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