句型转换。

1. She put the camera on the bed just now. (改为被动语态)

   The camera _____ _____ on the bed by her just now.

2. My uncle sent me a Christmas present last year. (改为被动语态)

    A Christmas present _____ _____ to me by my uncle last year.

3. Students can't take magazines out of the reading-room. (改为被动语态)

    Magazines can't _____ _____ out of the reading-room by students.

4. The glass was broken by Tom. (对画线部分提问)

    _____ _____ the glass _____ _____?