A. aspect B. happen to C. treat D. go to bed A. mum B. come up with C. stick D. brown A. day by day B. hotline C. insidious D. pollution A. lonely B. subdue C. generally speaking D. belongings A. no problem B. look at C. advertise D. pop music A. pestilence B. subject C. jot down D. silence A. police B. mention C. bump D. officious A. email B. trousers C. ring off D. join in A. precious B. pass C. weariness D. muster A. refuse B. in charge of C. lazy D. delighted