What's this?
The (white)board
What's this?
the door
What's this?
the window
What's this?
a bag
What's this?
a clock
What's this?
a pencil
What's this?
a pen
What's this?
a laptop
What's this?
a computer
What's this?
a dictionary
What's this?
a table
What's this?
a chair
What's this?
a piece of paper
What's this?
a coat
What's this?
a watch
Complete the sentence: I don't u__________.
I don't understand.
