—The problem isn't difficult for the children to work out, is it? —_____ . Perhaps they should have been given a more difficult one. 
#3913
A
Yes, it is
B
Yes, it isn't
C
No, it is
D
No, it isn't
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—________under the desk? -No, they aren’t.
#21804
A
Where are
B
What’s
C
Are those rulers
D
Is that ruler
—I don't feel myself now.—________
#956
A
Don't do that,please.
B
It's impossible.
C
What's the matter?
D
Why do you want to feel yourself?
--Excuse me, can you tell me how to get to the Tianfu Square? -- I’m sorry. I’m new here. --_____________.
#1066
A
It’s too bad
B
Thank you anyway
C
Don’t mention it
D
I’m sorry too