A. obscurity B. T-shirt C. by the time D. nature A. thank B. gathering C. optional D. wear A. vertically B. recommend C. never mind D. can't A. shine B. whale C. would D. come on A. derrick B. concert C. had better D. integrated A. goodness B. join C. salvage D. give A. health care B. never C. vegetable D. stay A. role B. exercise C. chemist D. on business A. film B. practise C. information D. watercolour A. silence B. teaching C. happy D. yummy