General English Level 1 V 3
UNIT 01 Who am I? TOPIC 04 My family
LANGUAGE FOCUS 12 Possessives
Tom's father = the father of Tom
's shows possession .

Examples:

Geng's father is a businessman.
Aeh lives with Geng's family.
Toby is Miriam's son.
Julia's hometown is Sydney.
Geng is Nat's friend.

We use whose to ask about possession:

Whose grandparents are they? They're Tom's grandparents.
Whose father is he? He's Tom's father.
Whose friend is Geng? He's Nat's friend.

Now go to 13 LANGUAGE FOCUS Present continuous.