题目内容：

My father often goes to work_____________
A by the car B in the car C by the bus
D in the bus

优质解答

by 直接加交通工具
by car
by plane
这是固定搭配,没有原因
所以首先排除A和C.
习惯的说法是on the bus.
所以排除D,因此选择B.