44. The boys looked at _________ (互相)and laughed.

43. We should help and learn from _______________(互相).

42. There will be ___________________(不上学)tomorrow because of the bad weather.

41. The boy _________do his homework __________(直到…才)his father came.

40. She is ___________(不再)a student.

39. _________________________(从前)the mountain was covered with trees and grass.

38. He goes to see his grandma _________________(一周一次).

37. The teacher often puts her rulers ___________________ (在…顶上)the television box.

36. Please come to school ____________________(准时).

35.There is a blackboard and two maps _____________________________(在…前墙上).