1 if guests need to talk on the phone, they ..... go outside so they do not interrupt others.
2 these are not private computers. anybody ..... use them.
3 each user ..... spend more than 30 minutes at a time on the computers
4 guests .... also access the internet on their own devices with a password from the librarian
5 there is a digital copy machine that gusests ..... use on the second floor