That pair of shoes ________ too expensive. Can you show me __________ pair?
—Do you teach ________ foreign languages? —Yes, I learn them on TV.
Jack _______ swim when he was five years old.
I think this problem is _______ that one.
Mrs Li is planning ______ Beijing with her cousin.
—I’d like ______ dress. What about ____ blue one? —Try it on.