题目内容：
He couldn’t remember( ).(本题1.0分)A、 what was the formula
B、 what were the formula
C、 what the formula was
D、 what the formula were
参考答案：
选择题：He couldn’t remember( ).(本题1.0分) A、 what was the f
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- 题目类型：选择题
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A、 what was the formula
B、 what were the formula
C、 what the formula was
D、 what the formula were