問題詳情：
--- What did he say? --- He asked .
A. if did your uncle catch the “bird flu” virus
B. who has been sent up into space in “Shenzhou-VI”
C. when Zhalong Nature Reserve became one of the world’s important wetlands
D. that the 2008 Olympic Games will be held in Beijing
【回答】
C
知識點：賓語從句
題型：選擇題
