30. ____ the elderly people in the nursing home so far, Julia? A. have you visited B. Did you visit C. Do you visit D. Are you visiting 31. People ______ between 1,600 and 2,500 calories a day to stay healthy A. are needing B. needed C. have needed D. need 32. The room smells bad. Somebody ______ in here A. smoke B. has smoked C. smoked D. will smoke 33. In that area, it _______ difficult to find enough food in winter. A. has been B. was C. is D. will be 34. Because I was sitting in the back row of the theater, I could hardly see the ________ A. painters B. musicians C. composers D. writers 35. I‟ve ______ seen this film. Let‟s watch something else. A. never B. ever C. already D. yet 36. Water puppetry began __________ the 11th century. A.in B. on C.at D.from 37. We often organize concerts to _______ funds for poor children. A. donate B. raise C. volunteer D. grow 38. There was some ham _________ from lunch. A. leave B. leaving C. to leave D. left 39. The Temple of Literature ___________ in 1070 by Emperor LyThanh Tong. A. found B. has founded C. was found D. was founded 40. We‟ve decided to clean up the lake ______ it is full of rubbish. A. so B. therefore C. but D. because