20. 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

答案:登入後查看
統計: A(53), B(116), C(202), D(45), E(0) #570946

詳解 (共 3 筆)

#872853
Not until ...後面句子倒裝
24
0
#5257231
題目翻譯:直到 1800 年代初,當田間...
(共 376 字,隱藏中)
前往觀看
3
0
#870677
為什麼是C呢??
0
0