A. hat B. board C. kill D. strap A. freeway B. garden C. pool D. knock on the door A. dress B. raincoat C. pick D. limestone A. present B. settle C. encounter D. painting A. contact B. clearly C. fumble D. understand A. arrive B. prosperous C. prime D. deliver A. potato chips B. penalize C. monkey D. shell A. collect picture cards B. mooncake C. as well as D. economy A. undertake B. difficult C. interminably D. careful A. worried B. transistor C. paperwork D. in class