46. In water polo, a player is ______ after committing five personal fouls. ​A. ejected​B. awarded​C. criticized​D. defeated 47. _________ is a game played in a swimming pool in which two teams of swimmers try to score goals with a ball. ​A. Diving​B. Windsurfing ​C. Rowing​D. Water polo 48. They are discussing the ________ to prevent poaching and the trade in rhino horn. ​A. measures​B. approaches​C. agreements​D. regulations 49. I ______arrive on time, so please start dinner without me. ​A. needn't​B. will​C. shouldn't​D. may not 50. It's the kind of book you can just dip ________.​ A. at​B. into​C. to​D. for