精选优质文档-倾情为你奉上词汇题Unit 11. this research seems to lend some validity to the theory that the durg might cause cancer.2. in a number of developing countries, war has been an additional impediment to progress.3. anthea was about to play her trump card: without her signature none of the money could be released.4. I flunked my second year exams and was lucky not to be thrown out of college5. I didnt want to lose my composure in front of her.6. the management did not seem to conside
