問題詳情
19. Not until the early 1800’s, _____________.
(A)globally increasing the corn acreage began
(B)the acreage of corn began to increase globally
(C)did the acreage of corn begin to increase globally
(D)with the beginning of globally increased corn acreage
參考答案
答案：C
難度：簡單0.607
書單：沒有書單，新增