Unit 1 时态、语态(七) 19. This kind of glasses manufactured by experienced craftsmen _____ comfortably. A. is worn B. wears C. wearing D. are worn 20. By the time you get to New York, I _____ fo...
Unit 1 时态、语态(六) 16. It seems oil ____ from this pipe for some time. We'll have to take the machine apart to put it right. A. had leaked B. is leaking C. leaked D. has been leaking 17. Grea...
Unit 1 时态、语态(五) 13. While people may refer to television for up-to-the-minute news, it is unlikely that television _____ the newspaper completely. A. replaced B. have replaced C. replace D...
Unit 1 时态、语态(四) 10. Until then, his family _____ from him for six months. A. didn't hear B. hasn't been hearing C. hasn't heard D. hadn't heard 11. Before the first non-stop flight made in...
