Переписать предложения, сделав их во общий во альтернативный во во к подлежащему )
4. Network users can not print documents. ( специальный во разделительный во

1. Do many students use computer to do their homework?

2.  Do network users have to share a computer?

3. Do the computers are connected with software?

4. Do network users can not print documents?

5. Do network users have to ask  before installing a new prongram?