56. Tom enjoys listening music.

55. There are two date trees in the back of out house.

54. My father asked my brother not smoke.

53. The glass was filled of bear.

52. The book is enough difficult for the boy.

51. The food tastes well.

50. I did y homework in the classroom instead at home.

　　　 下面各题均有一处错误，请找出并改正。

49. Don't touch the bottle until our teacher tells you to.