句型转换。

1. The girl has had the silk hat for three years. (改为一般过去时) 

    The girl _____ the silk hat three years _____.

2. Where shall I buy Christmas presents? Could you tell me? (改为复合句)

    Could you tell me _____ Christmas presents?

3. We plant millions of trees in North China. (改为被动语态)

    Millions of trees _____ in North China.

4. English is the most widely spoken language in the world. (改为同义句)

    English is _____ spoken than any other language in the world.

5. I don't know where I should go. (改为同义简单句)

   I don't know _____.