—Do you think you will be able to finish your writing by five o’clock today? — ______. I’ll be busy with experiments all day.
#2084
A
Not a little
B
Not a chance
C
Not to mention it
D
Not a big deal
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— Don’t keep water running when you wash hands.— __________.
#21033
A
I hope so.
B
I’m afraid not
C
Sorry, I won’t
D
It’s nothing.
—Shall we go for a during at one o'clock this afternoon? —_______.Will two o'clock be OK? 
#1731
A
Sure ,it's up to you
B
Sure, no problem
C
Sorry, I can't make it
D
Sorry, I'm not available today
—How much do I owe you for lunch?—           .It ' s  nothing.
#1535
A
You're welcome
B
Not at all
C
Forget it
D
That's right