My mom has been calling me since yesterday., I have been waiting for two hours at the bank., How long have you been waiting for the bus?, My sister had been talking on the phone for three hours., We have been studying English since 8:30., Some students haven't been studying these days., They have been doing exercise all the morning., I have been listening to music since I woke up., How long have you been living here?, Why have you been wearing my jacket?, It has been raining for three years.,

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