Use the appropriate forms of the words to complete the text. 1. BUILD; 2. FILL; 3. COST; 4. EARLY; 5. LITTLE; 6. BECOME; 7. WORK; 8. MAKE; 9. USE; 10. USE.

When computers 1. in the 1950s, they were huge. They 2. entire rooms and 3. millions of dollars. The 4. computers solved 5. than a thousand problems each second. Since then, computers 6. smaller, cheaper and faster. Today the world's fastest computers can solve a hundred million problems in a second. Scientists 7. nowadays to make them even faster and the computers 8. smaller and smaller. When computers were big and expensive, they 9. obly for very special purposes, now they 10. in many different ways.

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