9. The doctor is famous. You visited him yesterday.______________________________________________ 10. The student is from china. He sits next to me. _____________________________________________ 11. I have opened the present.  ________________________________________________________ 12. Thomas has written many books so far.  _______________________________________________ 13. Careless driving has caused many accidents.  _______________________________________________ 14. The strong storm damaged three buildings in this area  ________________________________________ 15. Someone has stolen a lot of money in the robbery.  ____________________________________ 16. They have sold millions of mobile phones in Asia this year.  _____________________________