Irregular verbs (3)

Раскрой скобки, используя Present Perfect.
I (just do) my homework.I have just done my homework.
Nell (just drink) some tea.Nell has just drunk some tea.
Ben (just go) home.Ben has just gone home.
They (just sing) a song.They have just sung a song.
We (just swim) in the lake.We have just swum in the lake.