6. Mary loves to talk about her childhood, she _____ every summer on her father's farm.
(A) use to spend
(B) was spending
(C) was used to spending
(D) would
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統計: A(55), B(34), C(52), D(38), E(0) #564239
統計: A(55), B(34), C(52), D(38), E(0) #564239