--Sorry, it's already 6 o’clock. I have to be off for an appointment. --OK. ________. 
#1761
A
It couldn’t be better
B
You really have me there
C
Let’s call it a day
D
Take your time
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—How’s it going, Bob? I haven’t seen you for ages.—______.
#23869
A
That’s all right
B
Forget it
C
That’s right
D
Fine, thanks
— How long are you staying? — I don’t know.       .
#3157
A
That’s ok
B
Never mind
C
It depends
D
It doesn’t matter
 -It looks heavy. Can I give you a hand?-___________. 
#768
A
Yes, my pleasure
B
No, thanks
C
No, never mind
D
Yes, I do
--Hey, Joe, why not eat out to celebrate Mum’s birthday? She makes meals for us every day.-- _________
#21058
A
Yes, she will.
B
Good idea.
C
Let me have a look.
D
We will go.