Quá khứ đơn

Điền vào chỗ trống trong câu trả lời của mô hình này với các động từ trong hộp trong quá khứ đơn.

Thanks to modern technology, there have been enormous changes in the workplace over the past 100 years.

What are the most significant changes that have occurred and what changes do you foresee in the next 100 years?

The pace of change in the world of technology is surprising. It wasn't  long ago that the postal service our only way to communicate over any distance. It days and sometimes weeks to receive letters from within the same country. As a result, the news in the letters already out of date when people them. In the workplace, this that business was mostly conducted locally, over relatively short distance.

When Alexander Graham Bell the telephone in 1876 it the foundation for the communication systems we have today. The telephone two people to communicate instantly across a great distance. Eventually computers typewriters and dramatically the speed of our daily work life. Nowadays the Internet is an essential part of every business.

However, it is not just communications that have changed. Only 50 years ago most people a car. People to work or bicycles. Changes in travel as well as the increased speed of communications have led to the global business world that have today.