大家都知道彩虹是由7种颜色组成的,请你圈出这7种颜色。(14分)red orange black indigo(青) blue pink purple white yellow green brown
( ) What is the colour ________ the desk?
( ) I can see the ________ teeth.
( ) The boys have got ________ already.
( ) That’s ________ art book.
( ) There are four ________ and two ________ in the group.