选择恰当的答语。(4分)
( )（1）
A．Look，it's under your book. B．It's on your book.
( )（2）
A．Thank you! B．Great!
—This is for you.
—____________
A．OK. B．Thanks! C．Sorry.
—Are you in the box?
—____________
A．Yes，I am. B．Yes，I can. C．Yes，I do.
—Can I use your book?
—____________
A．Thank you. B．You can't. C．Sure.
—Where is my toy car?
—______________
A．Sorry. B．It's on the desk. C．Yes.
