what are you doing ,mum?i am（ ）picture.A,look B,looking C,look at C,looking at

题目

what are you doing ,mum?i am（ ）picture.A,look B,looking C,look at C,looking at
A,LOOK B,looking C,look at D,looking at

答案

D,A,C是一般现在时,而题目中所表示的事态是现在进行时,所以A,C错误.look要表示看（某物）的时候只能在LOOK的后面加at来表示看（某物）,所以D正确! 很详细哦! 望采纳.