53. She _______ very　 _______　 ________ her children’s success.

　 她对她的孩子们的成功感到非常自豪。

52. The police _______ a man　 _______　 drowning.

　 警方援救一男子，使之免遭溺水。

51. All the students ______　 ________　 _______ the Internet.

　 并非所有学生都喜欢上网。

50. Professor Yu ______　 ______　 ______ before ______　 his speech.

　于教授在演讲之前先理顺了一下自己的思路。

49. A: They thought everything on the earth was going to be destroyed.

　 B: They thought everything on the earth was_______　 ______　 ________.

48. A: The villagers took potatoes from the earth for food.

　 B: The villagers _____　 _______ potatoes for food.

47. A: People in the US all love Washington very much.

　 B: All people in the US _______ highly ________ Washington.

46. A: The book is so difficult that I can’t read it.

　 B: The book is _______ difficult _______　 _________ to read