【单选题】— Well, John, my computer has broken down. Can I…? — Use mine? Yes, of course, ____. [ ]
A.
it's a pleasure. Go ahead
B.
but you have to be careful with it
C.
never mind. You'd better use your own
D.
I'm afraid not. You removed my document last time
【单选题】—Thank you for joining in our conversation tonight. — _______ .
【单选题】—Look at this, what a perfect item! $100 is my last offer. —OK. .
【单选题】It’s my mother’s birthday tomorrow. I will buy _____ a CD as a present.
【单选题】—Thank you for joining in our conversation tonight. —_____.