A.listen; hearing  
B.hear; listening 
C.be listening; heard
D.be hearing; listened to

A.I'm OK, thanks
B.She is well, thanks 
C.They are both fine, thanks 
D.He is well, thanks

A.Thanks, so are you 
B.Thanks, so do you 
C.Yes, I do
D.Yes, you are too

A.How are you?
B.I'm fine. Thank you.
C.How do you do? 
D.Nice to meet you.

A.Fine
B.Good
C.Nice
D.Great

A.I am very well. 
B.I am going to the library. 
C.I am going to take College English Test Band Four. 
D.That's a good question

A.Forget it. 
B.Sorry, I like Mexican food. 
C.That's great!
D.Glad you like it.

A.Excuse me
B.Sorry 
C.Pardon
D.Apologize

A.can  
B.must 
C.need  
D.may

A.few 
B.a few 
C.little 
D.a little

A.a porter  
B.is a porter 
C.as a porter 
D.that of a porter