阿摩線上測驗
25.More and more cows on this farm are getting sick. The problem is so ________ that the farm will be closed from tomorrow on.
(A) heavy
(B) popular
(C) serious
(D) strong
(A) heavy
(B) popular
(C) serious
(D) strong
答案：登入後查看
統計： A(11), B(8), C(86), D(5), E(0) #2336895
統計： A(11), B(8), C(86), D(5), E(0) #2336895
