帮我填填,( ) boy?The boy ( ) a black T-shirt.Oh,he's my brother.( ) ( ) is he in?

问题描述:

帮我填填,( ) boy?The boy ( ) a black T-shirt.Oh,he's my brother.( ) ( ) is he in?

(Who is the ) boy?The boy (in/wears ) a black T-shirt.Oh,he's my brother.(What ) ( class/grade) is he in?