(2013·郑州质量检测)—Jack hurt his leg yesterday.—Really?________?
#634
A
What’s wrong with him
B
How did it happen
C
Wasn’t he too careless 
D
Who told you that
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--I think our school’s selective courses are of great use and I have learnt a lot from them.--Yes _______.
#1860
A
No problem
B
I couldn’t agree more
C
I don’t think so
D
It doesn’t matter
—It’s getting late. I’m afraid I must be going now. —OK. _______ 
#4308
A
Take it easy.
B
Go slowly.
C
Stay longer.
D
See you.
---Happy birthday!  ---__________.
#22437
A
Thank you
B
Happy birthday
C
That’s all right
D
OK
 ---Go for a trip after the exam, OK?--- ______. I love getting close to nature to relax.
#2922
A
I couldn’t agree more
B
I’m afraid not
C
I believe not
D
I don’t think so