55. The bus stopped there for long. There must have something wrong with it.

54. There are much too people in the square.

53. We all think this ticket must be my neighbor.

52. What do you think the word “present” mean?

51. He didn’t come to work because of his car didn’t work halfway.

50. Please 　　　　　me 　　　　　at five thirty tomorrow morning.

49. The naughty boy 　　　　　read English when the teacher came into the classroom.

48.　　　 　the dog. It looks scary.

47. Yesterday Tom 　　　　　all his money. So he had to go home to get some.

use up, be careful of, be worried about, pretend to, wake up

46. Mother has not seen her son for two weeks. She 　　　　　him very much.