What is it?
a picture
What are they?
calendars
What are they?
workbooks
What is it?
a calendar
What are they?
doors
What is it?
a workbook
What are they?
clocks
What are they?
windows
What are they?
pencil sharpeners
What are they?
pictures
What is it?
a pencil sharpener
What is it?
a window
What is it?
a paper clip
What are they?
paper clips
What is it?
a door