Carl and Ben are twins(双胞胎).They are twelve.This is their bedroom.It's a nice room.There are two beds in the room.The yellow bed is Carl's and that green one is Ben's.The twins have one desk and two chairs.The chairs look the same.Carl's jacket is on his bed.Ben's coat is on his chair.Their clock, books and pencil boxes are on the desk.Their school bags are behind the chairs.
(1)
Carl and Ben are ________.
[ ]
A.
brother and sister
B.
brothers
C.
sisters
D.
friends
(2)
Carl's ________ is yellow and Ben's ________ is green.