The printed books helped the development of European cultural life. К этому предложению надо составить 5 типов вопросов:

1) Did the printed books help the development of European cultural life?

2) Did the printed books help the development of European or Asian cultural life?

3) The printed books helped the development of European cultural life, didn\'t they?

4) What helped the development of European cultural life?

5) What did the printed books help?