54. He said ________ he would return in a week.

53. The old man fell down ________ he wasn’t badly hurt.

52. Could you tell us ________ has been to America twice?

51. I don’t know ________ he will be back soon.

50. If you work hard on it, you’ll succeed in ________(finish)the job perfectly.

Ⅵ.综合填空。(5分)

　　　 选择下列所给词填空。

49. His mother ________(die of)an accident yesterday, so he was very sad.

48. It’s a pity that his mother ________(pass away)last year.

47. When he was in his ________(thirty), he took an active part in the battle against Qing dynasty.

46. I spent three hours ________(make)the model plane.

45. All the Chinese are p________ of Yang Liwei.

(B)用括号内所给词的适当形式填空。