Subject + 回答 + Object
回答 means "to answer" or "to reply," used when responding to a question or statement. It can function as both a verb and a noun. As a verb, it takes a question or person as its object.
老师提了一个问题,没有人回答。
Lǎoshī tí le yígè wèntí, méiyǒu rén huídá.
The teacher asked a question, and no one answered.
你还没回答我的问题呢。
Nǐ hái méi huídá wǒ de wèntí ne.
You still haven't answered my question.
她想了一会儿才回答。
Tā xiǎng le yíhuìr cái huídá.
She thought for a moment before answering.