We have bags ________ red and black ________ 10 dollars each.[ ]
This is _______ book I bought yesterday. Isn’t it ________ interesting one?
Who is ________ English teacher?— Well, it’s Mrs. Green. She teaches ________ English very well.
Look at the sign! —Oh, I see.We _______ waste water.
What are you doing, Jack?—I’m looking for some information about the event ________ attracts all the people’s attention.