With a proper link verb:(1)What

With a proper link verb:
(1)What think, say and do ____ none of your business. (2)I'll make sure that everything ____ ready before I leave for holiday.
【正确答案】：is;is
【题目解析】：【考点点击】本题考查系动词。【要点透析】 What think, say and do作为一个整体充当本句的主语,因此谓语动词用单数形式。当句子主语是 everything时,谓语动词用单数形式,本题中用一般现在时表将来。