Present perfect
PROCVIČOVÁNÍ:
elt.oup.com/student/project3rdedition/level3/unit5/grammar/exercise1?cc=cz&selLanguage=cs
elt.oup.com/student/project3rdedition/level3/unit5/grammar/exercise2?cc=cz&selLanguage=cs
elt.oup.com/student/project3rdedition/level3/unit5/grammar/exercise3?cc=cz&selLanguage=cs