1.what可用作主语【这时作单数看待】、补语、宾语、介词宾语或定语
例what（做主语）astonished you?
what has(不用have)happened?
what(作补语)is the diffrtrnce?
what is this man?
what（作动词宾语）do you want
2.what可用作副词，表示“到什么程度”
例 what does this small thing matter?
上一篇： My holiday life
下一篇： Friend in my heart