Choose the best answer to the following question. 1, Bill has been ____________ to online games since he left high school. a, addicting b, hooking c, hooked d,addicted 2, Researchers haven’t found out what has led __________ the pollution of the river. a, of b, on c, in d, to 3, We speak English ___________ now than last year. a, more fluently b, fluent c, more fluent d, fluently 4, He didn’t meet her last night, ___________? a, didn't he b, did he c, doesn't he d, does he