你想知道那个男孩是否是对方的哥哥，可以这样问（）

A.Who’s that boy

B.Who’s that girl

C.What's that

A.Who’s this boy

B.Who’s that boy

C.Who’s that girl

A.Who's this girl

B.Who's that boy

C.Who's that man

A．Who’s that woman

B．Who’s that boy

C．Who’s that girl

A．o you have a library

B．Is this the library

C．Where is the library

A.Who’s that girl

B.Who’s this girl

C.What’s that girl

A．He's my brother

B．Who's that boy

C．This is a boy

B．Is he your friend

C．Is that boy your brother

A．How are you

B．What's your name

C．Where are you from

A．Is he your brother

B．He is your brother

C．Is he your father

A.Who’s that boy

B.Who’s that man

C.Who’s that girl