1. witness vt. 当场见到；目击          n. 目击者；证人；证据There is a witness everywhere.若要人不知，除非己莫为。a witness to sth.……证人/证据witness to doing sth. 做某事见证
1.你亲眼看到那场事故了吗?Did you witness the accident?2. 他作证说他看到那个人进入大楼。He witnessed to having seen the man enter the building.3在这个案件中，他是一个主要见证人。He is a key witness in this case. 4. 他低沉声音是他发怒证据。His loud voice is a witnessed to his anger.
选取上述词语完成以下小段落。Mr.Bob claimed that he _________the whole thing and so he was called as a defense ________to prove Tom was innocent.But  ...