What's this?
It's a picture.
What's this?
It's a window.
What's this?
It's a pencil sharpener.
Is this a workbook?
Yes, it is.
Is this a calendar?
No, it isn't.
Is this a clock?
Yes, it is.
Is this a window?
No, it isn't. (It's a door.)
What's this?
It's a calendar.
What are these?
They're paper clips.
Are these pictures?
Yes, they are.
What are these?
They are clocks.
What are these?
They are workbooks.
Are these doors?
No, they aren't. (They're calendars.)
Are these pencil sharpeners?
Yes, they are.
Are these paper clips?
No, they aren't. (They're windows).
What are these?
They are doors.
