A. go back B. mosquito C. radioactivity D. vain A. member state B. rail C. mall D. quail A. mystery B. a piece of C. badminton D. lion A. humanity B. supporting C. kangaroo D. coke A. fortune-teller B. out of sight C. parrot D. regiment A. rooster B. clutter C. magpie D. take medicine A. knock B. jeans C. owl D. receipt A. temperature B. nest C. in addition D. torch A. planter B. elephant C. cold drink D. carnivore A. What's wrong with B. arm in arm C. watch a film D. tiger