( )is that pen? -------It's black. A. How co( )is that pen?-------It's black.A. How colorB. What colorC. What's colorD. What color

问题描述:

( )is that pen? -------It's black. A. How co
( )is that pen?
-------It's black.
A. How color
B. What color
C. What's color
D. What color