A. solitary B. telephone C. racial D. labor A. morning exercises B. during C. sympathetically D. one A. cement B. exercise C. eight D. usually A. me B. record C. reassure D. pad A. in one go B. five C. dread D. prosperous A. halt B. hold back C. where D. handy A. heart B. who C. channel D. air-resistance A. zero B. thirteen C. frighten D. absent A. instruction B. it C. mistake D. southeast A. they B. reason C. database D. rubber