2010年高考英语模拟试题分类集锦---单项选择

（四）

请认真阅读下面各题，从题中所给的A、B、C、D四个选项中，选出最佳选项，并在答题卡上将该项涂黑。

例: It is generally considered unwise to give a child _______ he or she wants.

    A. however          B. whatever       C. whichever        D. whenever

21. Companies in Zhongguancun all have their own characteristics, but they all share_______spirit of creativity and scientific skill that have made Zhongguancun _______ success.