--Don't make any noise in the living room! My baby is sleeping.  -- ________.   
#21479
A
Sorry, I won't.
B
It doesn't matter.
C
Excuse me, I'm wrong.
D
Certainly, I won't.
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—Putting on a happy face not only helps us make friends but also makes us feel better.  —__________.
#2644
A
I’d love to
B
I’m with you on that
C
It’s up to you
D
It’s my pleasure
——Tom, you are caught late again.——Oh, ____.
#3981
A
not at all
B
just my luck
C
never mind
D
that’s all right
—Do you mind if I use a phone?—     
#1456
A
Why not?
B
That’s all right.
C
Come on!
D
Be my guest!
The boy′s name is          .
#22456
A
He guohua
B
He Guo hua
C
He Guohua
D
He GuoHua