1. I think you have the wrong number.
a. I'll call back later.
b. What number did I call?
c. Can I leave a message?
2. Do you like skiing?
a. I can't get enough.
b. Don't be fooled.
c. I go for it.
3. Do you think this could come in handy?
a. Yes, it's a waste of time.
b. Yes, it's useful.
c. Yes, I'll call back.
4. Could you pick me up?
a. I'll take a message.
b. I'll take part.
c. I'll be there in five minutes.