4Complete these sentences with the words in the box. You do not need all the words. adware biometric scanning browser hijacker encryption
firewall hacker malware attack spyware Trojan

19A(n) is someone who tries to break into a computer system.
20A program which is usually free but contains a virus is called a(n)
21An effort to get unauthorised access to a computer is called a(n) .
22A(n) is software that replaces the user’s search engine with its own.
23 blocks authorised access.
24Software that sends information about the use of a computer system is called .
25 is one way to make sure that only authorised people access the network.
26 is software that automatically plays commercials on a computer.

Man of the XXI century special, because living in extreme conditions, breathing polluted air, drinking water, which even the scary look to the toga we accustomed to poison themselves with medicines.
     Modern man almost no attention to their health, smoking, drinking alcohol. But its resources may not be inexhaustible. We accept mind only when already feel that more can not continue. No wonder they say: "Only then price health will know how to lose."
     As you know, man can not live apart from the environment. it needs oxygen, water, food, it is clear that human health is largely dependent on the environment and, of course, of what it consumes, ie food.
     Food - an integral part of man. Speaking of food culture, it means not only clean table with fork and knife and snow-white tablecloth - is, above all, the ability to eat balanced meals. If we ignore it, it certainly will have health problems.
     I try to follow the basic rules, which is key to health. But, unfortunately, not always. For example, do morning exercises regularly, although I know that it is useful. But water our whole family regularly buys because we drink only purified. Of course, a lot to learn throughout life, it is not to forget - my health in my hands.

1) Fred constantly comes to school unprepared for his classes.
2) Bob always drives carefully.
3) We are heard Lycy is getting married. (passive voice)
4) I forget that Aunt Mary is arriving on Wednesday.
5) David's wife and his sister constantly buy expensive clothes.
6) We are told they're going to the Crimea for the summer. (passive voice)
7) I often see Philip in the library there days.-Yes, he is preparing for his spring exams.
8) Is Joanna Rowling writing a new Harry Potter book? 
9) My uncle says they are building a new garage.
10 ) Harry always forgets to say hello.