A. lunar B. exchange student C. solely D. spot A. imperceptible B. chant C. try D. firefighter A. rickety B. get away C. foreman D. roughly A. thermodynamics B. familiarity C. have classes D. strata A. crust B. American C. yours faithfully D. analogous A. agree B. tied C. true D. incur A. halt B. fast-food restaurant C. safety rule D. likelihood A. administrative B. unforeseen C. a couple of D. assemble A. keep away from B. sign language C. initiative D. army A. event B. administer C. Morocco D. one hundred