问题补充:
My father goes to work every day.
A. by a bike
B. in a bike
C. on a bike
D. ride a bike
答案:
A. by a bike
B. in a bike
(答案→)C. on a bike
D. ride a bike
解析:by在表示交通方式时,后面直接接交通工具。In表示在交通工具内部;on表示在交通工具上面;ride是动词,骑。句意:我们的父亲每天骑自行车去上班。结合语境可知本句不缺少谓语动词,自行车只能在上面,故选C。