What color is our national flag?

what color is the our national flag? What color is our national flag? What color is our national flag? what color is it what color is ()pen What color is it what color is it What color is it what color is it what color is what is the color与what color is it 区别 What color is the jacket?(What color is the jacket?( what is your favorite color your / what / is /color / favorite what color is your coat? what color is it回答 your / what / is /color / favorite what color is the blackboard?