1. There are many factors to consider when discussing the matter of ebooks vs. printed books.
общий
Are there many factors to consider when discussing the matter of ebooks vs. printed books?
специальный
What is there to consider when discussing the matter of ebooks vs. printed books?
2. A study conducted by Sesame Workshop found that children s development is more effective with a printed book rather than with an ebook.
общий
Did a study conducted by Sesame Workshop find that children s development is more effective with a printed book rather than with an ebook?
специальный
What did a study conducted by Sesame Workshop find?
