Joan said she ______ that there was something wrong with the machine.A.had foundB.has foun

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Joan said she ______ that there was something wrong with the machine.

A.had found

B.has found

C.finds

D.would find

请帮忙给出正确答案和分析,谢谢!

热搜:关于氨基酸代谢错误的论述是_________。