Englishfor English speakers
someone
Determiner
—
some person
I heard someone at the door.
You should ask someone who knows more about it.
I'm hoping to meet someone special at the dance.
who
Pronoun
—
You use who to add a clause to explain more about the person or people you're talking about.
They are good people who are working hard.
We saw Kim, who was in his car.
We asked everybody who was there.
It was you who lost the keys, not me.
—
You use who to ask about a person or people.
Who was on the phone?
Whos your new teacher?
Who did you meet today?
He told me who was there.
I'll ask who can help us.
looks
Noun
—
Ones' looks is their appearance or attractiveness.
after
Preposition
—
Later in time.
He came home after Jane did.
The doctor came after the patient had died.