fine weather! Let’s go out to have a picnic! AWhat a B．How C．What

问题补充：

fine weather! Let’s go out to have a picnic!

A．What a B．How C．What

答案：

解析：考查感叹句，what + 名词，how + 形容词或副词，题中的名词为weather不可数名词，所以用what,前不能加冠词。故选C。