build use become get be

Since 1946, one of the most important inventions has been the computer. It has been changing all our lives.

The first computer1. in 1946. It was as large as a room and quite difficult and slow 2..But since the invention of silicon “chip” (硅片), computers 3. smaller, easier and faster to operate.Some computers are as small as TV sets. Some can even be made smaller than a book. And computers4. smaller and smaller all the time. Who knows what the computers of tomorrow 5.like?

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