wear, invent, mean, enough, teach, read, invention, information, memorize, who | Modern glasses were 1. around 1,000 years ago. They were more than just aconvenient way 2. _ with. Before glasses, writers. scientists or 3. _whocould not see properly had to 4. everything. After about ten years of poor eyesight,they could not remember well 5. and could not work. Glasses 6. thatpeople could work into their old age. People 7. wanted to remember 8. _ could write it clown and read it. Glasses arc one of the world's greatest 9. and wereprobably 10. by the people who need them. |