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Choose the correct alternative to complete the sentences below regarding the right use of During/ for / since/ while: I met her __________ she was working with my sister.
She’s cried rivers of tears and left __________ the film.
He´s phoned me and we´ve talked __________ hours.
I ´ve been studying languages __________ I was a teenager.
I’ve been studying for this test __________ three weeks.