-- Why don't you join us for breakfast?  -- Sure! ______ 
#21102
A
Good luck!
B
Congratulations!
C
What to do?
D
Why not?
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---Good morning, Grand Hotel. ---Hello, I'd like to book a room for the nights of the 18th and 19th.---_____.  
#4170
A
What can I do for you?
B
Just a minute, please.
C
What's the matter?
D
At your service.
— Why not turn to your history teacher for help? — ________.
#2091
A
I’m too busy
B
I’m sorry
C
That’s a good idea
D
It doesn’t matter