— What’s this?                           

— It is          .

A．an ID card         B．a orange          C．ruler             D．an UFO

--What’s this in the blue box?

--________is an orange bottle. _______ orange bottle is mine .

 －What’s this ?         －It’s ______.

－What color is it?       －It’s ______.

A. orange, an orange　              B. an orange, an orange 

C. orange, orange                   D. an orange, orange