A. champagne B. make sure C. report D. efficiency A. flat B. for a start C. vegetarian D. colour A. idea B. parcel C. birth D. dynamic A. let down B. pollution C. sanguine D. take part A. pedal B. concentration C. overlook D. problem A. Cincinnati B. hand on C. source D. unfit A. cultural B. ancient C. in the afternoon D. prepare A. pupil B. sweets C. gratify D. snail A. away B. noise C. survivor D. fishing A. cause B. mooncake C. never D. superior