His pencil-box is (red and blue).就括号部分提出问题
问题描述：
His pencil-box is (red and blue).就括号部分提出问题
_________ __________ is his pencil-box?
答
what color is his.
His pencil-box is (red and blue).就括号部分提出问题
_________ __________ is his pencil-box?
what color is his.