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

发布时间：2020-08-17 10:13:42

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
B. for
C. but
D. so
解析：B
解析　句意为：他发现读书越来越困难，因为他的视力开始下降。for表示原因，符合句意。
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