— Sally, our monitor, was late for her class this morning. — ______? As far as I know, she never came late to class. 
#2182
A
How come
B
What for
C
So what
D
Why not
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—I really don’t know how to thank you enough .—      .
#3817
A
No problem
B
Think nothing of it
C
Not at all
D
It doesn’t matter
—I’d like a wake-up call at 7:00 a.m., please!—OK, _______.
#597
A
help yourself
B
You will certainly make it
C
just do what you like
D
I’ll make sure you get one