北京牙仙广告:求助英语

来源:百度文库 编辑:高校问答 时间:2024/05/05 07:25:00
you must be firm____you think yourself to be right.
A in which Bwhere C what D no matter how
应该选哪个?为什么?

A be firm sth“坚定,坚持”

A

be right in sth.