Question

请英语高手帮忙

用正确的形式填空
46. lock I lost my keys and couldn’t ___ the box.
47. experience Mary was already an ___ primary school teacher at the age of 24.
48. threat Their lives were frequently ___ by gas explosion.
49. perform The first American ___ of this opera was in 1926.
50. courage It was ___ of Mr. Stone to try and save the drowning man.
51. hope He was disappointed so often that he became ___.
52. cruel ___ to children or animals is a crime in many countries.
53. understanding John and Mary had a ___, but they have made it up now.
54. large The factory is being ___ to make room for more machinery.
55. eager She could not conceal her ___ for praise.

Answer 1

46. lock I lost my keys and couldn’t (lock/unlock) the box.
开启或锁上都行，都需要钥匙。
47. experience Mary was already an (experienced) primary school teacher at the age of 24.
有经验的
48. threat Their lives were frequently (threaten) by gas explosion.
被威胁
49. perform The first American (performance) of this opera was in 1926.
n. 演出
50. courage It was (courageous) of Mr. Stone to try and save the drowning man.
adj. 有勇气的
51. hope He was disappointed so often that he became (hopeless).
adj. 绝望的
52. cruel (Being cruel) to children or animals is a crime in many countries.
动名词 - 残暴的（对待...）
53. understanding John and Mary had a (misunderstanding), but they have made it up now.
n. 误解
54. large The factory is being (enlarged) to make room for more machinery.
被放大（扩建）
55. eager She could not conceal her (eagerness) for praise.
n. 热衷

Answer 2

unlock
experienced
threatened
performance
courageous
hopeless
being cruel (cruelty)
misunderstanding
enlarged
eagerness
有几个在前面已经回答过了啊

Answer 3

lock
experienced
threated
performence
couragous
hopeless
What's cruel
misunderstanding
enlarged
eagerness