A. sewage B. outbreak C. mark D. just then A. repetition B. bactericidal C. behave D. snore A. nomad B. disinfectant C. competence D. speak to A. negligible B. fire extinguisher C. he D. stainless A. on the phone B. vest C. friction D. shame A. gable B. regardless of C. glorious D. alcohol A. carbonated B. creative C. travel D. Antarctic A. moot B. Beijing Opera C. keep in touch D. site A. vegetable B. went fishing C. virtual D. private A. wrestling B. feeling C. awake D. methylated