Преобразуйте предложения используя I wish Unfortunately they won't return before Christmas.
2. The student was sorry he had not studied the
material better and had shown such poor knowledge
at the examination. 3. It's a pity that you did not
send for us last night. 4. It's a pity you are not with
us these days. 5. My friend regrets not having
entered the university. 6. He was sorry not to have
had enough time to finish his paper. 7. It's a pity we
shan't be able to reach home before tea-time. 8. I am
sorry I made you upset by telling you this news. 9.
What a pity you don't know enough physics.

1) The media are a set of public information transfer bodies using technical means

2) Due to the increasing capabilities of the media, information reaches the consumer with high speed, is being actively disseminated many times, is being actively introduced into the consciousness of the masses

3) Radio is more efficient, while television programs often need to be recorded on videotape in advance. Only the voice is important on the radio, as the speaker is not visible, but on the television you can see the speaker or the presenter, and therefore all of his physical shortcomings or advantages become apparent

4) Yes

5) Harmful to those who annoy and useful for those who earn money on it

1. What is mass media? 
-Mass media that is the press, the radio and television.
2. How does mass media influence people?
- They inform, educate and entertain people. They also influence the 
way people look at the events and sometimes make them change their views. 
3. What is the difference between radio and TV programmes? 
-I can't say that there is a great difference.On the radio one can hear music, plays, news and various discussions of current events. But you can do just the same while watching TV.
4. Does the audience of TV and radio differ? 
-There is no such information in the text, but as I personally think, it doesn't.
5. Do you think that advertising is useful?
-Of course, it is. It is very useful. It informs the audience of the existence of some products and it helps to choose the best item.