阿摩線上測驗
33. Look at the four squares [■] that indicate where the following sentence could be added to the passage. Where would the sentence best fit?
Unfortunately, these ecosystems are facing severe threats.
(A) A.
(B) B.
(C) C.
(D) D.
答案：登入後查看
統計： A(0), B(0), C(14), D(2), E(0) #3356779
統計： A(0), B(0), C(14), D(2), E(0) #3356779
