从A、B、C、D四个选项中，选出可填入空白处的最佳答案，并在答题卡上将该项涂黑。
21. ------You must hand in your report before September 10, which is the______?
------Ok. I will try my best to meet it. Thank you.
A. need B. deadline C. regulation D. agreement
22. At the beginning of the year 2009 the stock market appears to be inspiring in China, because the latest_____ on stimulating(刺激)the economic development seems to be effective.
A. solution B. intention C. attempt D. operation
