Buses have routes. They and people at different places on the routes.
A. take on, get off
B. pick up, drop off
C. take up; take off
D. pick out; drop out
网友回答
A. take on, get off
(答案→)B. pick up, drop off
C. take up; take off
D. pick out; drop out
解析：考查短语辨析。pick up上车；drop off下车。句意：公共汽车都有固定的线路，人们可以在其线路上的各停车点上下车。