A. extinction B. debit C. clean my room D. be at war with A. play computer games B. leftover C. leather D. graduation A. duty B. took pictures C. be proud of D. policeman A. bake B. soft C. train D. hive A. influential B. whisper C. dry up D. flight A. chemist B. per C. new D. stress A. despise B. resign C. snail D. kindness A. infant B. simple C. monk D. stay up A. as usual B. pollute C. inch D. adviser A. contribution B. astronomical C. fall off D. organization