A. walk off B. drown C. slim D. relative A. incidentally B. skeleton C. origin D. hot dog A. born B. lose heart C. kebab D. collapse A. epidemic B. at first C. biology D. hole A. sewage B. prediction C. zinc D. stable A. insularity B. make a bet C. pretty well D. ticklish A. careful B. hold C. necessity D. only A. let me see B. workplace C. Would you like D. seize A. energetic B. seem C. lunar D. ammeter A. a number of B. suspect C. many kinds of D. approximately