句型转换。

1. He has worked in this factory for 10 years . (就画线部分提问)

    ________ ________has he worked in this factory?

2. We have been playing football for two hours. (就画线部分提问)

    ________ ________have you been playing football?

3. I'm thinking about becoming an English teacher after graduation. (就画线部分提问)

    ________ ________ ________ ________ ________you thinking about ________ after graduation?

4. He has learnt English for 5 years. (改为同义句)

    He has learnt English________ ________ ________ ________.

5. He started to practice the guitar three hours ago. (用for改为同义句)

    He________  ________ practicing the guitar for three hours.