—I’m sorry to have kept you waiting.—______, Bill.   
#4131
A
You’re welcome
B
Go ahead
C
Don’t mention it
D
No problem
推荐题目
 ---Have you paid ? What’s my share of the bill? ---____. It wasn’t very much.
#1216
A
Don’t worry about it.
B
It’s my share.
C
None of your business.
D
It’s up to you.
We can’t go to the concert. _____, it’s too cold. Besides, we’ve no tickets.
#2484
A
After all
B
In other words
C
As a result
D
To start with
 ---Will you help me with this mathematical problem?     .  ---Sure. Let me see. 
#1221
A
It’s your turn
B
Go on
C
I’m stuck
D
See what I mean?
–Putting on a happy face not only helps to make friends, but also makes us feel better.–_______________.
#1792
A
I’d love to
B
I’m with you on that
C
It’s up to you
D
It’s my pleasure