阿摩線上測驗
18. Analysts say it’s too early to tell _____ oil price will go down in the long run or not.
(A) about
(B) of
(C) that
(D) whether
答案：登入後查看
統計： A(37), B(2), C(36), D(106), E(0) #2877469
統計： A(37), B(2), C(36), D(106), E(0) #2877469
