—Are these doctors and nurses tired, Mr. Smith? —Yes. ________. They have been operating on the patient for at least 10 hours. 
#2193
A
They’re exhausted!
B
You must be joking!
C
I’m not surprised!
D
They are really tired of it!
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—I had a great time in the summer holidays.We went scuba-diving in Hawaii.—Wow!________
#951
A
I'm going to Hawaii,too.
B
How generous you are!
C
That sounds really cool!
D
Enjoy yourself!
------ I'm sorry to interrupt you, Sir.May I ask you a favor?------ yes, _____.
#2536
A
take it easy
B
go ahead
C
Don't mention it
D
you will make it