按要求完成任务。

1．They have got some friends．（改为否定句）

They ______________ got ______________ friends．

2．This is my teacher．（改为复数句）

______________    ______________ our teachers．

3．Are there any doctors in the factory?（作否定回答）

No，______________    ______________．

4．His sister is a Chinese teacher．（对划线部分提问）

______________ his ______________ job?

5．The new students are from America．（同义句改写）

The new students ______________    ______________America．