Put the following sentences in the Future Perfect Continuous Tense : 1. I have been waiting for this play for more than a month . 2. We have been sitting in the stalls for several minutes . 3. I have been reading a programme for five mi nutes . 4. She hasn't been visiting the theatre for a long time . 5. We have been discussing what kind of show to attend for ten minutes . 6. I have been visiting the Operet ta House for two years . 7. They have been discussing the play " The Thunderstorm " for a long time .​