1 023 Watch the teenagers in the video. How many teenagers ... a) have given a class presentation? b) are nervous br worried about giving class presentations? .) have to do dass presentations regularly?
Computers are a useful thing, but this good thing also has disadvantages. What is useful for computers? With the help of this device, we can find information about every corner of our large planet. The computer is also a good assistant in study or work. At the computer, we can spend our leisure time and just play. Not everything is as good as it seems to us. Doctors recommend us to sit at the computer for an hour or two hours, no more. This is due to the fact that our vision begins to deteriorate, if the eyes do not give a rest. The computer also causes significant harm to our posture: when you are sitting at the computer, you do not keep your back as needed. There are also rules that tell Us to sit at the computer correctly
Present, Past или Future Perfect. 1. I have just ( finished) my work. 2. Has he ( looked) through newspapers yet? 3. Has he already sold all his goods. 4. Sally (had signed) all the documents before she left for lunch. 5. Sue (will have driven) home by midnight tomorrow. 6. Have they already (run) through the agenda for the day? 7. Mr Black (has not made) an appointment on the phone yet. 8. I had never seen her before. 9. The train (had started) when they arrived at the station. 10. Terry (will have sewn) her new dress by the end of this week.
What is useful for computers? With the help of this device, we can find information about every corner of our large planet. The computer is also a good assistant in study or work. At the computer, we can spend our leisure time and just play. Not everything is as good as it seems to us.
Doctors recommend us to sit at the computer for an hour or two hours, no more. This is due to the fact that our vision begins to deteriorate, if the eyes do not give a rest. The computer also causes significant harm to our posture: when you are sitting at the computer, you do not keep your back as needed.
There are also rules that tell Us to sit at the computer correctly
1. I have just ( finished) my work.
2. Has he ( looked) through newspapers yet?
3. Has he already sold all his goods.
4. Sally (had signed) all the documents before she left for lunch.
5. Sue (will have driven) home by midnight tomorrow.
6. Have they already (run) through the agenda for the day?
7. Mr Black (has not made) an appointment on the phone yet.
8. I had never seen her before.
9. The train (had started) when they arrived at the station.
10. Terry (will have sewn) her new dress by the end of this week.