Trộn 1 g dd HCl với 1 g dd KOH thu được dd X. a. Tính khối lượng các chất trong X? b.Nhúng giấy quỳ tím vào dd X có màu gì? Vì sao?

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19. Every morning , I (watch)_______tv at 10.00, but today I (Listen ) _____ to music at 10.00. 20. Everyday , I (go) __________to school by bike but today I go to school by motorbike. 21. Every morning, my father (have) _______a cup of coffe but today he (drink)_________ milk. 22. At the moment, I(read)_______________a book and my brother (watch)_______ TV. 23. Hoa (live)________________in Hanoi ,and Ha (live)________________in HCM City. 24. Hung and his friend (play)_______________badminton. 25. They usually (get up)___________________at 6.oo in the morning. 26. Ha never (go)_______fishing in the winter but she always (do)____________ it in the summer. 27. My teacher (tell)__________________Hoa about Math. 28. There (be)____________________ animals in the circus. 29. _______________he (watch)______________TV at 7.00 every morning? 30. What _____________she (do ) _________________at 7.00 am? 31. How old _________she (be)? 32. How ___________she (be)? 33. My children (Go)________________to school by bike. 34. We (go)_______________to supermarket to buy some food. 35. Mr. Hien (go)________________on business to Hanoi every month. 36. Ha (like)______________coffee very much, but I (not like)______________it. 37. She (like )________________Tea, but she (not like)____________________coffee. 38. I (love)_______________ cats, but I (not love)__________________dogs. 39. Everyday ,I (go)______to school on foot, but today I (go)________________to school by bike. 40. Who you _______ (wait) for Nam?      -No, I ______________________(wait) for Mr. Hai. 41. My sister (get)______________ dressed and (brush)_______her teeth herself at 6.30 everyday. 42. Mrs. Smith (not live)_____in downtown. She (rent)_______in an appartment in the suburb. 43. How _________your children (go)_________________to school everyday? 44. It’s 9 o’clock in the morning. Lien (be)________in her room. She (listen) _________to music. 45. We_______________________(play) soccer in the yard now. 46. My father (go)___________ to work by bike. Sometimes he(walk)______________. 47. _________You (live)________near a market? _ It (be)____________noisy? 48. Now I (do)_____________the cooking while Hoa (listen)_______________to music. 49. At the moment, Nam and his friends (go)_______________________shopping at the mall.