He/just/fall asleep.
He has just fallen asleep.
He/just/drink/some water.
He's just drunk some water.
They/just/come home.
They have just come home.
You/just/tidy/your room.
You have just tidied your room.
The boy/just/do his homework.
The boy has just done his homework.
They/just/get on/a bus.
They've just got on a bus
She/just/open/the window.
She's just opened the window.
I/just/feed the dog.
I've just fed the dog.
I/just/buy/some bananas.
I've just bought some bananas.
I/just/write a letter.
I've just written a letter.
He/just/break the vase.
He has just broken the vase.
He/just/meet his friend.
He has just met his friend.
We /just/see the tiger.
We have just seen the tiger.
They/just/win the match.
They have just won the match.
I/just/close the door.
I have just closed the door.
I/just/draw a picture.
I have just drawn a picture.
He/just/eat/some cake.
He's just eaten some cake.
She/just/lay on the sofa.
She has just laid on the sofa.
She/just/hid/behind the sofa.
She has just hidden behind the sofa.
The thief/just/steal/wallet.
The thief has just stolen the wallet.
He/just/wake up.
He has just woken up.
The plane/just/take off.
The plane has just taken off.
My dog/just/tear the magazine.
My dog has just torn the magazine
He/just/choose/trainers.
He has just chosen trainers.