1. c

Ever since the Internet came into general use, people are have been debating the question of freedom of speech online.

2. e

Some people think that freedom of speech on the Internet cannot and should not be restricted in any way. 

3. f

Attempts to control content posted on the Internet by users are often unsuccessful. 

4. a

In my opinion, every Internet discussion should be legally required to have a moderator. 

5. d

The feeling that you can say anything you like online causes a lot of harm.

6. b

A person which who has been a victim of cyber-bullying is unlikely to support unqualified freedom of speech on the Internet.