None of Da Vinci’s notebooks survive today. true or false

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Da Vinci studied the human body. true or false

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Some people can’t tell if the Mona Lisa is smiling. true or false

21. We gave my dad a surprise party on his fortieth birthday. My dad WAS GIVEN surprise party on his fortieth birthday.

22. After the play, they introduced us to all the actors. After the play WE WERE INTRODUCED to all the actors.

23. They've caught the person who stole your bike! The person who stole your bike HAS BEEN caught!

24. No one had told me that Jill was coming! I HADN'T BEEN TOLD that Jill was coming!

25. Our English teacher and our German teacher are husband and wife. Our English teacher IS MARRIED TO our German teacher.

26. A neighbour is feeding our dog while we're away. Our dog IS BEING FED BY a neighbour while we're away.

27. Use a sharp knife to cut the cake. The cake SHOULD BE CUT WITH a sharp knife.

28. I'm not interested in what you think! I DON'T CARE What you think!

29. My parents don't let me watch much TV at home. I AM NOT ALLOWED to watch much TV at home.

30. They're GOING to invite over a hundred people to the wedding reception. OVER A HUNDRED PEOPLE ARE going to be invited to the wedding reception.

One of the main problems that is associated with the computer - a substantial load on vision. In turn, the visual fatigue affects the general condition of the child, both mentally and physically. It is important to adjust the brightness and contrast of the monitor so that your eyes do not get tired quickly. You also need to properly set the screen resolution and frame rate. With the child to do special exercises for the eyes. Today's age is a period of high-tech, rapidly developing scientific and technical progress. With the advent of computers we had priceless friends, so to speak, to help us resolve a great number of tasks, assume by the World Wide Web emerged an opportunity to talk with people who are far away from each other. Based on all of the computers today is closely intruded into our lives, work and era of paper-based information is gone for a long time in the well-forgotten past