--Do you know when the Chinese custom_________ from? --It's hard to say. But its characteristics__________ the Tang Period.

 I was crazy because it _____me two hours to get_____ in the restaurant the other day.

 Some people who don't like to talk much are not necessarily shy；they ________ just be quiet people.

I left university with a good degree in English Literature, but no _________ of what I wanted to do.

Security was such a major concern at the G8 Summit that no journalists could approach the meeting zone without ________ the special pass.