— _________ has Liu Xiang taken part in world’s competitions of 110-metre hurdles?— I’ve no idea. Let’s find it out on the Internet.

---- __________is the train station from this shopping mall, do you know?---- About 30 minutes by bus.

They are ______________ exciting that they can jump up.

—______ have you lived in Binzhou?—For about ten years.

---_____ did you pay for the CD?---Only nine dollars.