He found it increasingly difficult to read, ______ his eyesight was beginning to fail. A. though B. ...
2023-02-07 22:03:51 158次 2008年普通高等学校招生全国统一考试山东卷英语试题 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
He found it increasingly difficult to read,
______ his eyesight was beginning to fail.
A.
though B.
for C.
but D so
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