The boy is playing____ piano. He isn’t playing ___ basketball.
A. a, a B. the , / C. /，/
— Are Maria and Helen sisters?
— No．__________ they’re good friends．
A．And B．But C．Then
— Who is that girl?
— Oh，＿＿＿＿＿．
A．she is my friend，Jane
B．it is my friend，Jane
C．he is my friend，Yukio
— __________ is the boy in blue?
— Sorry．I __________ know him．
A．Where；doesn’t B．Who；doesn’t C．Who；don’t
— Whose car is this?
— I __________ it’s Mr．Lee’s．
A．think B．see C．know
— Is your bike ___________?
— No, it’s old．
A．young B．big C．new