By the time the concert starts, we will have been waiting in line for two hours., By the end of the year, I will have been working on this project for six months., By next summer, they will have been living in their new house for a year., By the time she graduates, she will have been studying music for ten years., By tomorrow evening, they will have been painting the mural for three days., By next Christmas, we will have been married for five years., By the time the sun sets, the birds will have been singing for hours., By the end of the week, he will have been practicing his guitar for a month., By the time the movie ends, they will have been watching it for two and a half hours., By next year, she will have been teaching English for five years.,

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