Are the underlined parts of these sentences OK? Correct them where necessary. 1. Did you hear about Sophie? She's given up her job. 2. My mother has grown up in Italy. 3. How many plays has William Shakespeare written? 4. I've forgotten his name. Is it Joe or Jack? 5. Who has invented paper? 6. Drugs have become a big problem everywhere. 7. We've washed the car, but now it's dirty again. 8. Where have you been born? 9. Ellie has gone shopping. She'll be back in about an hour. 10. Albert Einstein has been the scientist who has developed the theory of relativity.