The horse couldn't sing LaLaLa

Fred asked me if I had enjoyed the opera the night before. I said yes, but I only saw half because the performance had been interrupted. I was able to seen only a first act, only one of two. In the opera there were two horses, but in the second act one of them jumped off the stage and all the audience had to leave. Fred suggested that maybe the horse couldn't sing.

Exercise 6

Since computers were first introduced to the public in
the early 1980's, technology has changed a great deal. The first computers were
simple machines designed for basic tasks. They didn't have much memory and they
weren't very powerful. Early computers were often quite expensive and customers
often paid thousands of dollars for machines which actually did very little.
Most computers were separate, individual machines used mostly as expensive typewriters
or for playing games.

Times have changed Computers have become powerful machines with very practical
applications. Programmers have created a large selection of useful programs
which do everything from teaching foreign languages to bookkeeping. We are
still playing video games, but today's games have become faster, more exciting
interactive adventures. Many computer users have also get on the Internet and have
begun communicating with other computer users around the world. We have started
to create international communities online. In short, the simple, individual
machines of the past have evolve into an international World Wide Web of
knowledge.