1) They ______________ videogames for three hours a) Has been playing b) Have been playing c) Are playing 2) He _______________ chess since primary school  a) Has Been playing b) Have been playing c) Is playing d) Played 3) She ______________ since 1999 a) Hasn't been drinking b) Has been drinking c) Drank 4) He _____________ English  a) Has been studying b) Is studying c) Has not been studying d) Have been studying

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