Oh, Mary, why are you killing your time this wayCan’t you find something____ doing at all

The shower that we put in a few years back has broken and we cannot afford to________it.[ ]

ot necessary to explain the truth____ there is spring wind, there is green grass.

Students shouldn’t go to school __________breakfast. It’s bad for their health.

Tom was so wild about computer games that he would stay online for ten hours ________ a day.