4．A．How much is this toy?        B．That's a little expensive．   C．I'm scared of it．

3．A．No, I've had enough．           B．How delicious!                 C．Never mind．

2．A．Three and a half hours．         B． My watch works well．

C．A quarter past five．

1．A．Good luck!                    B．Thank you．                 C．Of course．