—Excuse me, Professor Smith, I was wondering if I could leave a quarter earlier today. — _____ .
#2456
A
Nothing the matter.
B
Sure, go ahead
C
Oh, why not?
D
Of course, no problem.
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Would you mind waiting for me at the gate? ________ 
#21864
A
Sure.
B
Certainly.
C
Not at all.
D
Yes.
–I really thought I’d win first prize. --Oh,…well,        , Tom.
#721
A
that’s all right
B
best wishes
C
it’s out of question
D
better luck next time
— There are so many current styles, which one should I choose? — ________.
#3806
A
It’s your opinion
B
I don’t mind
C
It’s all up to you
D
That’ s your decision