按听到的顺序标号。
（ ）May I have a copybook?
（ ）Get up, David．
（ ）All right .
（ ）Come in, please.
（ ）What's in your school bag?
（ ）This card is for Mr.Green.
（ ）That ruler is for your sister.
（ ）Happy Teachers' Day!
（ ）Here's a card for you.
（ ）Come here, David．
（ ）I've got a car, Mr.Green.
（ ）Here you are.
（ ）What's that in your school bag?
