We ____________ write letters 50 years ago., could, couldn't, We _______________ talk on the phone 50 years ago., could, couldn't, We _______________ send emails 50 years ago., could, couldn't, I_____________________play tennis when I was 5 years old., could, couldn't, We ________________ watch TV 50 years ago., could, couldn't, My sisters_____________________run 15 km when they were 20 years old., could, couldn't, My grandma _________________ use the computer a month ago., could, couldn't, We _________________ send texts 50 years ago., could, couldn't

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