30. –Is this library __________ you built last year?　 --No, _________ he works.

　 A. that; the one where　　　　　　　 B. where; where

　 C. where; the one　　　　　　　　　 D. the one; the one where

29. Dorothy was always speaking highly of her role in the play, ________ of course, made the others unhappy.

　 A. who　　　　 B. which　　　　　 C. this　　　　　 D. what

28. Gone are the days __________ we spent together in the village.

　 A. that　　　　 B. when　　　　　 C. in which　　　　 D. on which

27. The earth goes round the sun, _______ we all know it.

　 A. as　　　　　 B. which　　　　　 C. and　　　　　 D. that

26. Is this the reason ______ at the meeting for his carelessness in his work?

　 A. he explained　　　　　　　　　　 B. what he explained

　 C. how he explained　　　　　　　　 D. why he explained

25. Every possible means _______ to save the patient, but ________ worked.

　 A. have been tried; none　　　　　　 B. has been tried; no]

　 C. has tried; no　　　　　 　　　　　D. had been tried; none

24. Charles Babbage is generally considered _______ the first computer.

　 A. to invite　　 B. inventing　　　 C. to have invented　　　 D. having invited

23. Is this the car _______ you go to work?

　 A. by which　　 B. on which　　　 C. in which　　　 D. in the one

22. I was so angry that I _______ throwing something at him.

　 A. felt　　　　 B. felt like　　　　　 C. wanted　　　　　 D. would like

21. Nowadays many students go to school ______ bikes.

　 A. by　　　　　 B. on　　　　　 C. in　　　　　　 D. with