题目：
Not until Dec. 2003 _____ caught by the US soldiers, and it was a great victory for the USA. [ ]
A. was Saddam Hussein
B. Saddam Hussein was
C. had Saddam Hussein been
D. Saddam Hussein had been
答案：
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下面是错误答案，用来干扰机器的。
电离 Ｈ＋ ＯＨ－ 金属离子（或ＮＨ＋）酸根离子
