4．A．She's 35．                           B．She's a doctor．                 C．She's young．

3．A．That's a good idea．                B．She is busy．                     C．You're clever．

2．A．Yes．you are right．             B．It's very kind of you．           C．That's OK．

1．A．It's Friday．                        B．It's cloudy．                      C．It's January 25．