Never_____such hard years in all her life as she had in her four years’ laboratory work looking for radium.

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问题 Never_____such hard years in all her life as she had in her four years’ laboratory work looking for radium.

选项 A、Madame Curie had
B、did Madame Curie have
C、Madame Curies had
D、had Madame Curie had

答案D

解析

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