完成句子。
69 He often goes to school by bike. (同义句)
He often _______ a bike _______ school.
70. I usually eat breakfast at 7:00. (对划线部分提问)
_________ __________ you eat breakfast?
71. He likes pandas, because they are cute. (对划线部分提问)
__________ does he ________ pandas?
72. 这幅画是由象牙制成的。（翻译句子）
The picture is __________ __________ivory.