42. The houses _____ by a group of volunteers two years ago. A. are build B. is built C. was built D. were built 43. I _____ this doll since my eighth birthday. A. had B. have had C. was having D. had had 44. I _____ the novel written by Jack London several times before. A. read B. have been read C. have read D. was read 45. We _____ here in 1993. We _____ here for a long time now. A. moved/were B. have moved/ were C. moved/have been D. were moving/were 46. This is the first time I _____ such a famous singer. A. have meet B. have met C. met D. were meeting 47. Prices _____ dramatically so far. A. rises B. rose C. are rising D. have risen 48. The principal _____ a white car last Moday. A. hasn’t driven B. didn’t drove C. didn’t drive D. hasn’t drove 49. You don’t tell me your story, so I can’t help you. A. If you told me the story, I could help you. B. If you tell me the story, I can help you. C. If you had told me the story, I could have helped you. D. If you had told the story, I could help you. 50. He doesn’t study hard, so he can fail the examination. A. If he studies hard, he won’t fail the examination. B. If he didn’t study hard, so he wouldn’t fail the examination. C. He wouldn’t have failed the examination if he had studied hard. D. If he studied hard, he wouldn’t fail the examination.