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
詳解 (共 1 筆)
未解鎖
解析：第二句的 The problem ...
私人筆記 (共 1 筆)
未解鎖
答案：(C) serious /ˈsɪr...
阿摩線上測驗
登入
