67. Joe did the homework in the classroom yesterday. (改为一般疑问句)

　 ________ Joe _______ the homework in the classroom yesterday?

68. Tom spent two hours finishing his report last night. (保持句意基本不变)

　 It __________ Tom three hours __________ finish his report last night..

69. The students in our class help the old lady clean her house once a week.(就划线部分提问)

　　 __________ ___________ do the students in our class help the old lady clean her house?

70. The teacher didn’t use the blackboard yesterday. He used a computer.(合并为一句)

　 The teacher used a computer ________ ________ the blackboard yesterday.

71. Anna invited me to her birthday party last month. (改为被动语态)

　 I ________ _________ to Anna’s birthday party last month.

72. Sometimes children are so young that they can’t tell the bad from the good. (保持句意基本不变)

Sometimes children are ________ young ________ tell the bad from the good.

73. "When will we have a spring outing? " asked the students. (改为宾语从句)

The students asked ________they _________ have a spring outing.

　　I ________ to the Culture Palace yesterday

[　　]

　　I ________ to the Culture Palace yesterday

[　　]

I want to buy a new bike．(改为同义句)

　　I ______ ______ to buy a new bike．

（句型转换） My hobby is listening to music after work.(改为同义句)

　　I ______ _______ to music after work.