A.No. I don't think so.
B.Thank you.
C.I need to buy a birthday present for my son. 
D.Yes. I think so

A.incident 
B.event   
C.case 
D.accident

A.caught up with
B.kept in touch with 
C.kept up
D.made up with

A.are they
B.aren’t they
C.were they
D.have they

A.do they
B.didn’t they
C.don’t they
D.did they

A.stands
B.stood
C.standing
D.stand

A.In fact
B.For example
C.Besides
D.Because of this

A.You'd better buy a watch.
B.It's three thirty by my watch
C.Can you see the clock?
D.It's late I think.

A.You can't miss i
t B.I don't know
C.No, I can't
D.Sorry, but I am a stranger here myself

A.Certainly.
B.Why?
C.No, I can't.
D.Where is he?

A.Yes, go straight down this way to the end.
B.Why do you ask me the way?
C.Yes, I will.
D.No, I can't tell you that.