36 _____ I began to think about alternative models of agricultural development.
(A) It was 1976
(B) In 1976 when
(C) Not until 1976 when
(D) It was in 1976 that
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統計: A(17), B(23), C(48), D(92), E(0) #926606
統計: A(17), B(23), C(48), D(92), E(0) #926606