_______ you met with Yao Ming for the first time?
| A．When it was that | B．Was it when that |
| C．When was it that | D．Was it that when |
When you talk about a person's _____, you are referring to the country, race, or social class of their parents or ancestors．
| A．origin | B．nationality | C．generation | D．relative |
Do you think _____ possible to work out a correct figure of the income that the Expo will bring to China?
| A．that | B．this | C．one | D．it |
—You’ve finally figured out the puzzle!
—Yeah, in a complex way, _____．
| A．too | B．though | C．either | D．yet |
—I’m terribly sorry, Lucy．I’ve left your notebook at home．
—_____? I reminded you last night．
| A．So what | B．Why not | C．How come | D．What if |
_____ we have finished the course, we shall start doing more revision work.
| A．For | B．Ever since | C．Now that | D．By now |