写出下面词组和句子
问题描述：
写出下面词组和句子
be careful of the gap（同义词） foot bridge（同义词） reach（同义词）
line up to wait for the train同义
behindthewhitesafetyline 同义
that'll be 125yuan inall同义
答
look out of the gap,pedestrian bridge ,arrive
stand in a queue to wait for the train ,after the white safety linethat'll be 125yuan totally.