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34. The concerts are usually held at the university by the students.
35. If the traffic weren't crowded, he could be able to cross the street.
37. If she had been told about it, she would be at the meeting.
39. She gave up her job to take car of her mother.
40. After dinner we drive to the top of a hill outside the city to admire the sunset.
41. If they had warned me, I wouldn't be in a difficult situation.
42. What do you keep hunting whales for?
43. A new house is going to be bought in Ho Chi Minh city by Lan.
44. What does your friend feel?
45. The windows were intended to clean by my sister before she went to the market.
46. Money is usually changed at the bank.
47. My money was stolen from my purse this morning.
48. That problem wasn't referred to at the last meeting.
49. I was taken to school everyday by my father when I was small.
50. You should put some pictures on the walls.