1． A．Oh，it’s hard．
B．By listening to the radio．
C．I’ve learned a lot that wav．
2． A．Yes，I do． B．No，I didn’t． C．I think so．
3． A．Don’t tell me what I should do．
B．Sorry，I’m busy．
C．That sounds like a good idea．
4． A．It’s hers． B．They must be Tom’s． C．Yes，they are．
5． A．Yes，I did． B．I took a bus． C．I remember．
