R: Hi, Julia. We are going to have a party on New Year's Eve. 51( ) J: Yes, I'd love to. 52 ( )R: At the Student Center. It will be the biggest party this year.J:Oh,53( )Anything I can do?R:Yes,54 ( )J: Why not? I've just learnt a Chinese song.R: I can't wait any longer!55 ( )J:See you.
How long did it take Dad to be good at skating?
A、A day.
B、A month.
C、10 minutes.
D、30 minutes.
What do we know about Dad from the third paragraph?