A. go over B. tea art C. first D. look A. leading B. frozen C. encouragement D. office A. student B. squeeze out C. rob D. personality A. history B. bed C. around D. tetrahedron A. four B. citizen C. airline D. cause A. general B. shelf C. thing D. on the right A. frightful B. spasm C. couple D. three A. Canada B. front C. them D. day A. confused B. thrifty C. exit D. later A. as long as B. classroom C. teacher D. prolonged