Jeanne said; “My friend Mathilde very hard during those years.”A. had workedB. use to w

问题补充：

Jeanne said; “My friend, Mathilde, very hard during those years.”

A. had worked

B. use to work

C. used to working

D. used to work

答案：

A. had worked

B. use to work

C. used to working

(答案→)D. used to work

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