1. Are you looking for my sister? - She isn't at home now. She _____ to the library. A. went ​​B. goes ​C. has gone ​​D. is going 2. Are you looking for my sister? - She isn't at home now. A. stealed ​​B. was stealing ​C. was stolen ​D. stole 3. She said she met you once at the Hilton last year _____ since A. have you met her​​B. had you met C. did you meet ​​​D. have you met 4. I can't remember the name of the man _____ I gave you the money. A. who ​​B whom ​​C. whose ​​D. which 5. Here is the address to _____ you should write. A. which ​​B. whose ​​C. whom ​​D. who 6. We had a river _____ we could swim. A. in which ​​B. on which ​​C. to which ​​D. at which 7. I won't be able to very much but I'll do the best _____ I can. A. that ​​B. who ​​C. what ​​D. when 8. It is in this house _____ he was born A. that ​​B. where ​​C. which ​​D. what 9. Who _____ the bicycle? A. invents ​​B. was invented ​C. invented ​​D. did invented 10. Do you still have a headache? - No, it _____ I am all right now. A. went ​​B. has gone ​​C. goes ​ D. is going