A. turn off B. up and down C. cart D. couple A. ozone layer B. mercy C. god D. regular A. sadness B. queen C. evident D. so-so A. doormat B. transporter C. society D. servant A. persecute B. net C. tusk D. which A. task B. sit C. newsletter D. airplane A. crash B. dialog C. metre D. again A. climbing B. handsome C. rediscover D. headband A. dubious B. joke C. mad D. in advance A. happy birthday B. midwestern C. deliberately D. involve