用 run sb up 造一个英语句子

问题描述:

用 run sb up 造一个英语句子
还有look back over one's shoulder 也用这个短语造一个句子

The flag is run up every morning.(没有run sb up这种用法,只有sth is run up/sb run up等用法)
I look back over my shoulder to see if I'm being followed.