70. 他太累，在公交车上睡着了。(完成译句)

He was ________ tired ___________ he fell asleep on the bus.

69. My cousin usually walks to school every morning. (改为同义句)

　 My cousin usually goes to school _________　 _________ every morning.

68. More and more people speak Chinese in the world. (改为被动语态)

　 Chinese _________　 __________ by more and more people in the world.

67. The kid is playing the piano at the school music club. (对划线部分提问)

　 ___________ is the kid __________ the piano?

根据所给提示，完成句子。每空一词，含缩略词。

66. There were many students in this school last year. (改为否定句)

　 There ________　 _________ many students in this school last year.