A. deem B. detour C. lab D. cut A. neat B. phrase C. labyrinth D. eraser A. ago B. alternative C. black D. Britain A. persistent B. wear C. requirement D. mamba A. back B. quantities of C. linguist D. week A. man B. dignity C. mankind D. London A. settle B. borrow C. buy D. optimistic A. unbelievable B. pleasantly C. tariff D. radioactivity A. phenomenon B. AIDS C. bus stop D. one another A. meanwhile B. fortnight C. slowly D. punishment