句型转换。
（1）We are having lunch  at home.(改为一般疑问句，并做肯定回答)
you having lunch  at home ?Yes ,                       .
（2）Jack  is flying the kite  now.(对画线部分提问)
   Jack           now ?
（3）He  goes  to  work at 7:00.(改为一般疑问句，并做否定回答)
he         to  work at 7:00?No,he           .
（4）I have lunch at 12:00 noon. (对画线部分提问)
    you              lunch ?