The Internet was born when scientists attempted (5)_____ the American Defence Network…..

Users often do not know each other in real life, so it is important that parents keep a close eye(8)______ the content of any conversations.

Chat rooms are online hang-out spots (7)_______ anyone can talk about anything…

Sometimes these messages contain viruses, or other inappropriate content, (6)________ parents should warn children to be wary of e-mails from unknown people.

Signing up for an e-mail account is simple because most services offer them (5)________ free.

Through e-mail, (4)______ can easily send and receive messages.

Knowing a little about each of these communication services can help parents (3)_____ children safer while online.

They can also allow children(2)______ with people that they have never met in person.