A. It's a pie.
B. Thank you, Mr Green.
C. May I come in?
D. Yes, Mr Green.
E. Yes, please.
Tom:
Mr Green:Come in,Tom.
Mr Green:Look at the blackboard.
Class:
Mr Green:What's that,Sam?
Sam:
Mr Green:Would you like a pie?
A.
B.
C.
D.
door
window
book
blackboard
A. Thank you.
B. It's a door.
C. Yes, please.
D. It's white.
E. OK, Miss Green.