51.Lots of people surf the Internet to look for some ____about the lost plane. (信息)
52. To keep healthy, it’s ______ for us to exercise more. （必要的）
53. If students want to learn English well, they should learn about western _____ (文化)
54. It is a good habit to brush your teeth at least ______（两次）a day.
55.There is a tall b______(建筑物) in front of my school.
56.. Mr. Liu is handsome and (有创造力的).
57. The roads are becoming more and more (拥挤) because of too much traffic.
58. We can enjoy (新鲜的) air in the countryside.
59. It’s good for your __________ to eat an apple every day. (健康)
60. I often read some __________ in the school library.（杂志）
One day a lady saw a mouse 61 (run) across her kitchen floor when she ___62___ (cook). She was very afraid of mice, so she ran out of the house, got on a bus and ___63___(go)down to the shops. There she spent 10 dollars _64___(buy) a mouse-trap（捕鼠器）. The shopkeeper said to her, “Put some cheese (奶酪)on it, then you __65___(catch) that mouse soon.”The lady went home with the mouse-trap, but when she looked in her cupboard, any cheese couldn’t __66__(find) in it. She didn’t want _67___(go) back to the shop because it was too late, so she cut a picture of some cheese out of a magazine