按要求转换句型。

1. There is some bread on the table. (改为否定句)

    There _______  _______bread on the table.

2. He is doing his homework now. (改为一般疑问句)

    _______  _______  _______ his homework now?

3. The show starts at 7:30 p.m. (改为一般疑问句)

    _______ the show _______ at 7:30 p.m.?

4. We saw many different birds at the Beijing Wildlife Park. (改为同义句)

    We saw _______  _______  _______ different birds at the Beijing Wildlife Park.

5. I think it is important that I do something to protect birds. (改为同义句) 

    I think _______ important for me_______  _______ something to protect birds.