3.
(A) planting and harvesting
(B) planted and harvested
(C) to plant and harvest
(D) been planted and harvested

答案：登入後查看
統計： A(8), B(48), C(8), D(10), E(0) #808145

詳解 (共 1 筆)

#4786963
前面是it was developed，...
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