A. chairwoman B. be bound to C. vanished D. flat A. clumsy B. turn into C. dive into D. invitation A. counter B. steal C. be short of D. earphone A. square B. oilfield C. concentrate D. civilize A. surgeon B. suitable C. Tibetan D. squadron A. approval B. fundamental C. be occupied with D. association A. ratio B. telescope C. immensity D. parlour A. region B. profit C. plough D. lack A. ninety B. Nigeria C. be based on D. dictation A. below B. consistent C. lip D. discard