問題詳情

10. Of over 6,000 languages once spoken in the world, an estimated __________ today.
(A) exist 3,000
(B) 3,000 exist
(C) there are 3,000
(D) existing are 3,000

參考答案

答案：[無官方正解]
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)