________matters most in learning English is enough practice.
| A．What | B．Why |
| C．Where | D．Which |
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 |
I’ll never forget the days ______ I spent on the farm.
| A．when | B．that | C．in which | D．in that |