Question

She says ...
Where's my T-shirt?
It's over there!
Where's my homework?
It's (1) ... the chair!
Where are my trainers?
They're (2) ... the floor!
Where are my books?
They're (3) ... the door!​

Answer 1

1)it's on the chair!

2) they're on the floor!

3) They're behind the door!