17世纪60年代至18世纪60年代，英国东部地区发生了农业技术革命。其中一项新技术叫做“四区轮作制”，即分别在农场的四块士地上种植芜菁、小麦、萝卜、大麦，四年里轮流更换，不让任何地块休闲，同时又能保持地力。这一革命（    ）

⑴Dad，where are my keys? ____         A．No，thanks．

⑵What's in your schoolbag?____         B．He's a doctor．

⑶Would you like a knife and fork?____   C．They are in the door．

⑷What's your father's job?____          D．Yes，they are．

⑸Who is she?____                      E．Two pencils and many books．

⑹Are they on the table?____            F．She's my aunt．

扩句。

①爸爸跑。

②伯父掏钱。