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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