Completar frases Modal Verbs - Can, could, may, might, should, & willVersión en línea Filling in blanks with the correct modal verb por Brígida Sousa 1 can might shouldn't will can't should could 1 . My sister speaks foreign languages . She speak German and Spanish . 2 . You like this book . In my opinion , it's really interesting , but you'll have to see for yourself . 3 . I promise , I go swimming with you tomorrow . 4 . It's a difficult decision . What I do ? 5 . You forget to say " please " and " thank you " to people . 6 . My father run very fast when he was younger . He was a professional athlete ! 7 . No , you don ? t have my permission to go to the cinema ! You go out today !