4. According to the latest study of IUCN, over one-fourth of the plants on the earth ______ already been extinct and will never be seen again.
(A) has
(B) have
(C) having
(D) had
詳解 (共 1 筆)
未解鎖
one-fourth of the pl...
私人筆記 (共 1 筆)
未解鎖
解釋： 句子主詞是： over on...
阿摩線上測驗
登入
