—Thanks a lot, but can you do me one more favor, please? —___________, sir. What can I do for you?
#1819
A
Just a minute
B
It’s very nice of you
C
At your service
D
Not a bit
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—I’ll go camping this weekend.—      
#2938
A
Best wishes.
B
No,I’m too busy.
C
Don’t give up now.
D
Have a good time.
— ____________, sir? —I’d like to buy a gift for my friend.
#21538
A
Can you help me
B
What can I do for you
C
How are you
D
What about you