22. He found it increasingly difficult to read, ____ his eyesight was beginning to fail.(A) though (

問題詳情

22. He found it increasingly difficult to read, ____ his eyesight was beginning to fail.
(A) though
(B) for
(C) but
(D) so

答案：B
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)