Complete the tag-questions. 1) reading is a very useful way to spend your free time, 2) libraries were equipped with computers many years ago, 3) you can't find encyclopedias or reference books in libraries, 4) the invention of printing changed the history of mankind, 5) you may not consult the librarian about the books, 6) people usually don't choose books for
2. weren't they?
3. can you?
4. didn't it?
5. may you?
6. do they?