Our government has taken some measures to overcome the lack of electricity, but it may take some time _____ we have enough power．
A．since B． after C．unless D．before
She has made great progress in her studies but she said what she had achieved was________little compared to the teacher’s expectation．
A．so far B．too far C．far from D．far too
Peter’s jacket looked just the same as Jack’s，but it cost________his．
A．as much twice as B．twice as much as
C．much as twice as D．as twice much as
—You didn’t take the high-speed train with the leading letter "G" to Shanghai?
— ．I still took the "D" train, which saved me more than 50 yuan．
A．Yes, I didn't B．No, I did
C．Yes, I did D．No, I didn't
There are four bedrooms in the flat, with its own bathroom．
A．all B．every C．each D．either
The World Expo is like ____ great stage for cultural exchange, bringing people into closer contact with _____ rest of the world．
A．a; 不填 B．the; 不填
C．a; the D．the; the
