70. 我花费了一下午的时间才完成了这个设计。(翻译)

　 I _____ a whole afternoon _____ my design( 设计).

69. I believe that I can learn English well. (同义句)

　　I beliveve that I will ______　 ______ to learn English well.

68. They have been in London for ten months. (一般疑问句)

　 　_____ they _____ in London for ten months?

67. Be careful, or you will fail the exam. (同义句)

　_____ you _____careful, you won’t pass the exam.

66. that,he,thought,by,would,computers,be,most,never,used,people (.) (连词成句)

　 _________________________________________.

65. Jack should give some help to the man. (否定句)

　 Jack ______ give ______ to the man.

64. He will leave for England in two weeks.　 (对划线部分提问)

______ 　______　 will he leave for England?

63.Mr. Zhang said,“I want to forget the past.” (　改为间接引语　 )

Mr. Zhang said that 　______　 ______ to forget the past.

62.They are doing morning exercises now. (　用this time yesterday改写句子　)

They ______　 ______ morning exercises this time yesterday.

61. I don’t know. Where does he live? (二句合一)

　 I don’t know _____ he _____.