Tree Planting Day was started in the year 1979. Every year　 　46　 March 12th, office workers, soldiers, workers, school children and old people go out to plant trees.

Last week, Class 3 went to plant some tree on Tree Planting Day. Everybody　 47　 old clothes. They met in the school　 48　 , and then walked to a park about four kilometres away from the school. They sang songs　 49　 they were walking. Miss Zhang and several other teachers went with them.

　　 When they arrived at the park, they started to work. A truck　 50 　many young trees to the park. The children took them from the truck, and carried them to the right place. They worked together　 51 　. They　 52　 to dig holes in the ground. It was hard work, but they really enjoyed it. When the holes were　 53　 , they put the young trees in the holes, and then filled them again. They　 54 　the earth hard with their feet. Then they got water from a river, and watered the trees well. They also watered some of the older trees, too. 55 　they were very happy. That day they planted over 2,500 trees.

“Well done！” said Miss Zhang.“You’ve done very well today！”

46 　A. at　　　　 B. on　　　　　 C. in　　　　　　　 D. of

47. A. was wearing　 B. was　 putting up　 C. has worn　 D. put on

48. A. never　　　 B. always　　　 C. as often　　　　　 D. as usual

49. A. while　　　 B. before　　　 C. after　　　　　　 D. as soon as

50. A. took　　　 B. had　　　　 C. brought　　　　　 D. bought

51. A. of pairs　 B. in pairs　　 C. on pair　　　　　 D. at pairs

52. A. took to turn　　　 B. took turns　 C. have taken turns　 D. take turns

53. A. high enough　 B. enough deep　 C. long enough　　 D. deep enough

54. A. pull out　　 B. pushed up　　 C. pushed… down　　 D. put on

55. A. At the beginning of the day　 B. By the end of the day

C. In the end of the day　 D. At the end of the day

45．There are a few differences ________ the towns.

A．between　　 B．from　　 C．among　　 D．of

44．We’ll go to the zoo if it ________ rain tomorrow.

A．doesn’ t　　 B．don’ t　　 C．won’ t　　 D．areh’ t

43．More Great Green Walls must ________ all over the world．

A．build　　 B．be built　　 C．to built　　 D．to be built

42．“What a wonderful day!”“ ______ !”

A．It is so　　 B．So is it　　 C．So it is　　 D．Is it so

41．________ of them works very hard at English.

A．Both　　 B．Each　　 C．Every　　 D．Neither

40．Go ________ the bridge, then you can get to the park.

A．to　　 B．on　　 C．across　　 D．through

39．This isn’t a real king’s hat. It is used ________ plays.

A．in　　 B．for　　 C．with　　 D．by

38．Go ________　 this street, and turn left ________ the fourth crossing.

A．on; to　　 B．along; at　　 C．up; to　　 D．down; in

37．I like the hat ________ in the shop.

A．to show　　 B．on show　　 C．in show　　 D．at show