He_________ _________ ________ out of the library.   

2. When are trees often planted?(变为主动语态)

  When__________ people often_________ ___________?

3. The League was founded in Guangzhou in 1922.(就划线部分提问)

  ________ _______ ________ _______ the League________?

4. Did the students wear the school clothes a lot?(变为被动语态)

  ________ the school clothes________ a lot?   

5. Kate took good care of the baby yesterday evening.(变为被动语态)

 The baby________ _______ _______ well by Kate yesterday evening.

6. His aunt bought him a bicycle. (变为被动语态)

  A bicycle______ _______ ________ him by his aunt.