55. I hope you will prove a______ to this job.

54. The speed limit is 60 miles an hour. Don’t exceed (超过) this m______.

53. Never deny a fact that is a______ to any one.

52. The general will lead his t______ to victory.

51. Von Frisch built a t______ wall through which he could observe the bees inside the hive.

50. He was deeply o______ with them at their refusal to come.

Unit 14

49. He’s a s______ child who won’t obey his mother.

48. She c______ her trip to London as she felt ill.

47. He finally c______ us of his innocence.

46. He felt g______ at deserting his wife.