网址：http://m.1010jiajiao.com/timu3_id_3238381[举报]
－May I come in?
－________
A．Sure．
B．Thank you．
C．Come in, please．
选择适当的答语
--_______________.
A. It's a nice pencil case.
B. Sure. Here you are.
C. Come in, please.
选择正确的答语。
--May I come in?
--___________
A. Yes, it is. B. Come in, please. C. Sure. Here you are.