A. cast B. farthest C. halfway D. radio astronomer A. stack B. frighten C. surprise D. fore fathers A. heroine B. commission C. exhausted D. am A. approval B. ventilate C. west D. curtain A. unsympathetic B. thumb C. tiring D. next to A. e-mail B. laborer C. cell D. car pool A. armchair B. detective story C. underclothes D. month A. clear B. himself C. sway D. turn to A. turn B. conductor C. clown D. metropolitan A. weariness B. orally C. kowtow D. octopus