What color is his trousers

What color is your trousers? can you think what color his shirt is?的句子成分 colour/color,what,is,his,ruler?.连词成句 what ,the,ruler,is ,color,his,of 连成句 what color is ()pen what color is this what color is it what is the color与what color is it 区别 What color is that car? what color is your （ ) jacket? what color is the blackboard? what color is your favorite?