Change these assertive sentences to both yes/no questions and wh- questions.

Dear Students, 

4. Did the scientists decide to write a book about his discoveries?
  Who decided to write a book about his discoveries?
5. Was your friend the winner of the competition?
   Who was the winner of the competition?
6. Will the president inaugurate the trade fair?
    Who will inaugurate the trade fair?

Please post the remaining questions in a separate thread. 

Regards,

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Why bones and joints?
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