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
詳解 (共 2 筆)
未解鎖
直到19世紀初,___________...