22. Where is your brother? - He is at school.
23. Where is your sister? - she is at home.
24. Whose pencil? - this is my pencil. -- Where's my pencil? - he is on the table.
25. Whose is the clock? - it's my watch. -- And where's my watch? - they are on the table.
26. Where is your laptop? - he was in the office on the desk.