Odpowiedź:
Wyjaśnienie:
1. has travelled
hasn't been
2. have known
haven't met
3. hasn't read
has watched
4. have been
haven't visited
5. haven't done
haven't had
Tworzenie zdań oznajmujących w Present Perfect:
Podmiot + have/has + III forma czasownika + reszta zdania
Tworzenie zdań przeczących w Present Perfect:
Podmiot + have/has + not + III forma czasownika + reszta zdania
have not = haven't
has not = hasn't