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

问题描述:

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

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.