問題詳情

23. When it rains, these harmful chemicals seep into the ground, or run off into our waterways, ____ our water, too.
(A) poisons
(B) poisoning
(C) poisoned
(D) being poisoned

參考答案

答案：B
難度：簡單0.815217
統計：A(2),B(75),C(7),D(3),E(0)