11. The scheme allows students from many countries _____ with each other.  a. communicate B. to communicate C. communicating  D. communicates  12. _____ the storm warnings, we did not go out last night.  a. Since B. In spite of C. Because of  D. The result  13. This is the fifth time you _____ me the same question.  a. ask B. asked C. are asking  D. have asked  14. When I arrived at the party, Lucy _____ home.  a. has already gone      b. had already gone C. already went  D. already was going  15. English people spent 18 hours per week _____ TV.  a. watching B. to watch C. watch  D. for watching  16. I’ve lived in a small house near the coast _____ 1990.  a. from B. since C. in  D. for  17. She left home in 1993 and _____ since.  a. hasn’t seen B. didn’t see C. hasn’t been seen  D. wasn’t seen  18. It’s time we _____ this old car and bought a new one.  a. will sell B. have sold C. had sold D. sold  19. Since Mr. Hassan _____ president, both taxes and unemployment _____.  a. has become/ increased B. became/ increased   c. became/ have increased  D. has become have increased  20. _____ all my warnings, he tried to fix the computer himself.  a. Although B. In spite of C. Because  D. Instead of