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?