A. come about B. crew C. desktop D. now and then A. advocate B. scratch C. dome D. children A. result in B. birth C. purity D. tram A. bacteria B. steadily C. put through D. immigration A. upside B. phenomenon C. perpetual D. palace A. play with fire B. aluminium C. insist D. put up with A. greenhouse B. die C. utter D. note A. consume B. kimono C. snake D. boot A. port B. hectare C. flame D. indoor A. tendency B. beaten track C. melon D. shabby