It’s not safe to travel by standing at the road side hoping to be by passing motorists.
A. picked up
B. picked out
C. put on
D. taken on
网友回答
(答案→)A. picked up
B. picked out
C. put on
D. taken on
解析：动词短语辨析。A捡起，用车接，无意中学会，等；B挑选；C穿上；D雇佣，呈现，承担；句意：站在路边希望搭路过的司机的顺风车去旅游是不安全的。