He found it increasingly difficult to read， his eyesight was beginning to fail.A. thoughB

发布时间：2020-08-17 09:21:15

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

网友回答

A. though
(答案→)B. for
C. but
D. so
解析：for在此引出表示原因的并列分句。
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