【預告】5/13(一)起，第三階段頁面上方功能列以及下方資訊全面更換新版。 前往查看

(舊)TOEIC(Test of English for International Communication)題庫下載題庫

上一題
134. An estimated five and a half billion tones of carbon ______ released into the atmosphere each year by burning of coal, oil, and synthetic fuels.
(A) have been
(B) have
(C) has
(D) has been

答案：登入後觀看
難度： 適中

10
 【站僕】摩檸Morning：有沒有達人來解釋一下?
倒數 3天 ,已有 1 則答案
Cara Liang 大二下 (2020/04/11):
複數又是長期 故用現在完成式
0個讚
檢舉


134. An estimated five and a half billio..-阿摩線上測驗