Marc: what plays(0) have you performed (perform) sergei: we (1) already (do) treasure island by stevenson. last year the 10th form (2) (write) a new play. marc: what play (3) you (perform) this year? sergei: the adventures of tom sawyer by m. twain. we (4) (start) to prepare it in february. we (5) (show) it to all the pupils of our school in may.