28. When we were kids, Grandpa _____ to read us stories before bedtime.
(A) uses
(B) used
(C) is used
(D) has used
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統計: A(2), B(53), C(10), D(18), E(0) #3861660
統計: A(2), B(53), C(10), D(18), E(0) #3861660