阿摩線上測驗
22. Not until the early 1800’s, when the value of field corn as grain and livestock feeding was recognized, _____.
(A) increasing acreage began
(B) its acreage began to increase
(C) did its acreage begin to increase
(D) with the beginning of increased acreage
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統計： A(0), B(1), C(3), D(0), E(0) #3848044
統計： A(0), B(1), C(3), D(0), E(0) #3848044
