21. You should keep quite in the library. No conversation or
other types of noise _____ in this area.
(A) permit
(B) are permitted
(C) are permitting
(D) been
permitted
答案:登入後查看
統計: A(36), B(403), C(42), D(41), E(0) #2228390
統計: A(36), B(403), C(42), D(41), E(0) #2228390
詳解 (共 3 筆)
#7679818
You should keep quite in the library. No conversation or other types of noise _____ in this area.
你在圖書館裡應該保持安靜。在這個區域內,不______交談或其他類型的噪音。
(A) permit 允許(原形動詞)
(B) are permitted 被允許(現在式被動語態)
(C) are permitting 正在允許(現在進行式主動語態)
(D) been permitted 已經被允許(過去分詞)-->前面缺少助動詞
No conversation or other types of noise 不交談和噪音是「被」允許的 -->用被動動詞 --> (B)
0
0