M: Sure, 5,10,15,20. OK, 20.
W: Can I have some coins? I need them for a phone call.
M: Here you are.
What can we learn from this conversation?
A、The woman is paying the bill.
B、Bill’s phone number is 510-1520-20.
C、The man pays 20 dollars to the woman.
D、The woman has a 20-dollar bill changed.
