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
Science and technology are advancing so quickly that________ is a possibility today may be a reality tomorrow．
A．that B．which C．不填 D．what
Each person has his / her unique character which ________him / her from others．
A．differs B．distinguishes C．divides D．draws
That is the only way we can imagine________ the overuse of water in students’ bathrooms.
A．reducing B．to reduce C．reduced D． reduce
．—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
After the Yushu earthquake, to make sure that rescue work could be carried out as smoothly as possible, Premier Wen Jiabao ________ his visit to Brunei.
A．put away B．put off C．put up D．put down
