As we live in the 21st century, we must accept the inevitability of a computer revolution. Computers help society, due to their using we can do many things as follows: internet connection helps people from all around the world know each other. Distance learning, for example, gives disabled people a possibility to study and communicate. People can have an opportunity to work at home using only a computer. In general, computers have made things simpler and more effective. At the same time, as proverb says “two sides of the same coin”, some people hold an opinion that computers have a negative impact on people`s health. People who are against computers say that computerization is bad for society. Communication via computers can`t replace a vivid conversation or meeting. Parents pay attention that there are so many negative information their children receive using the Internet, as well as the popularity of computer games is bad for children`s health and behavior. To my mind, computers have changed the world. We can`t deny this tendency but we should be attentive using computers and not to forget about real world.
1. I must go home for a week. 2. Yesterday, I had to answer six emails. 3. Do I have to buy flowers for the meeting? - Yes, please. 4. He should be well prepared for the exams. 5. He says that he must go to bed early. He has to get up early tomorrow. 6. I could not go to his birthday last night. I had to prepare for the exam. 7. Could you help me? I can not find the mail. 8. I must buy a birthday gift for my best friend. 9. I had long before agreed with my mother that I had to come home for a week. 10. My brother should help his father repair the car. 11. I have not seen this film. I must definitely see it. 12. If you've done all the work, you can go home.
