A. immigration B. stick C. friction D. stomach A. nutrient B. black rhino C. alcohol D. impending A. in particular B. special C. disinfectant D. robot A. industrial B. recording C. leakage D. crest A. sewage B. brigade C. mermaid D. be made up of A. game show B. go to a drawing club C. sb can't wait D. intermittent A. baggage B. sunset C. request D. sterilize A. struggle B. ethanol C. survival D. chart A. take a look B. growth C. sanitation D. smarter A. once or twice B. winkle C. mat D. contamination