单项选择题
（）for the Olympic Games begins about ten years in advance.
A.Bid B.To bid C.Bidding D.To be bidden
单项选择题 While（）money, she had worked very long hours.
单项选择题 （）all your money in the first week is not a sensible strategy.
单项选择题 I regret（）that I'm unable to help you.
