It made all the Chinese happy China succeeded in sending up ShenzhouⅦ．
A. when
B. which
C. that
D. If
网友回答
A. when
B. which
(答案→)C. that
D. If
解析：主要测试主语从句。结合具体语境可知译文为：让中国人高兴地是中国成功的发射了神州七号。分析句子结构可知，题干中含有两套主谓结构：It made all the Chinese happy 和China succeeded in sending up ShenzhouⅦ，结合译文可知代词it属于形式主语，至此可知选择应到此that最佳，因为句子China succeeded in sending up ShenzhouⅦ不缺少成分。