問題詳情
21. Covering the metal with paint have been the most widely used method forpreventing rusting.
(A)with
(B) have been
(C)widely
(D) rusting
參考答案
答案：B
難度：適中0.541667
統計：A(2),B(13),C(3),D(4),E(0)
用户評論
【momou】評論
Covering the metal with paint have been the most widely used method for preventing rusting.用油漆覆蓋金屬是防止生鏽最常用的方法。我個人理解應將"have been"改成"has been"。剛看下面才知原來這題是挑錯，那麼我的理解是對的。