--- I must say it is the most delicious duck I have ever eaten.--- __________. I’m glad you enjoyed it.
Every year, ______people go to visit the factory.
—_______ is this pencil? —It’s mine.
Is this ______ ruler? —No. _______ is over there.
Bill likes playing ______ basketball, but he doesn’t like playing ______ piano.
—Would you like to go swimming with me this afternoon?—______ , but I have a lot of homework to do.