21. How high is the Big Ben Clock Tower? - (height) .............................................................? 22. What is your son’s weight? - (heavy) ............................................................? 23. What is the price of this face mask ? - (cost) ...............................................................? 24. How long is the Mekong River ? - What ..................................................................? 25. How wide is the west Lake ? - What ..................................................................? 26. I never saw the sharks before. - This is .................................................................. 27.I didn’t have a toothache. They didn’t have a toothache - (neither) ............................................................ 28. Mr. Lan should wear gloves to protect his hands - Mr. Lan had better ............................................. 29. Mr. Thanh couldn’t enjoy the meal because of the stomachache - The stomachache prevented ............................. 30. What is your daughter’s age, Mr. Lan ? - How ..................................................................? 31. Minh didn’t go to school yesterday because of his sickness - Because Minh .................................................. 32. You shouldn’t eat too much meat - You’d ................................................................ 33. How heavy is the chicken? - What .................................................................? 34. What’s the matter with you? - (wrong).............................................................? 35. Why were you absent from class last Monday? - Why didn’t .......................................................? 36. Liz thought no fish was more beautiful than the colorful little fish - (the most)......................................................... 37. Long is a bad swimmer - Long swims ...................................................... 38. Mrs. Oanh cooks well - Mrs. Oanh is ...................................................... 39. Ann drives dangerously - Ann is .............................................................. 40. It is not necessary for you to finish the work to day. - You don’t have .................................................