answer是一个规则的动词，所以它的过去式直接加ed。也就是 answered
answer的过去式形式是answered，过去分词形式是answered，现在分词形式是answering，第三人称单数形式是answers。
answer的短语搭配:
in answer to 回答，应…要求
answer for 因……而受罚，对……负责
no answer 无应答，舵失灵
answer the phone 接电话
answer up 迅速回答
answer例句:
Your answer is exactly right.你的回答完全正确。
He couldn't answer the question. 他没有能回答那个问题。
The answer is really quite simple.实际上答案相当简单。
