单数句子：

1. What color is your key？ It's red.

2. What color is your moon？ It's green.

3. What color is your eraser？ It's pink.

4. What color is the car？ It's blue.

5. What color is it, and what's it used for？

复数句子：

1. What color are my eyes and fur？

2. What color are your shoes？ They are green and blue.

3. Mary, can I ask you something？ What color are your post-it notes？

4. What color are you looking for？

5. Yeah, what color are my eyes？