句型转换。

1. I think he can speak English well. (变为否定句) 

    I ________ think he ________ speak English well.

2. My sister does her homework on Sundays. (一般疑问句)

    ________ yours sister ________ her homework at home on Sundays.

3. Danny gave a very good report on Europe. (对画线部分提问)

    ________ ________ a very good report on Europe.

4. There is much cloud today. (改写同义句) 

   ________ ________ today.

5. He will come home after eight o'clock. (用not…until 改写)

    He ________ come home ________ eight o'clock.