A. waitress B. thinker C. acknowledge D. operator A. assemble B. air hostess C. since then D. dawn A. air tank B. keep up with C. receive D. goodbye A. heavier B. thoroughly C. job D. decorate A. crop B. harry C. eliminate D. well A. hi B. ready C. balanced D. What's wrong with A. represent B. today C. regard D. horizon A. them B. protect C. what D. bruise A. dismiss B. fin C. engineer D. herd A. nod B. flea-ridden C. how D. replace