你知道间接疑问句是什么吗?

coworker – n. someone you work with

favor – n. a kind or helpful act that you do for someone

phrase – n. a group of two or more words that express a single idea but do not usually form a complete sentence

clause – a part of a sentence that has its own subject and verb

convert – v. to change something into a different form or so that it can be used in a different way

commitment – n. a promise to do or give something