He found it increasingly difficult to read, _____ his eyesight was beginning to fail. A. for B. thou...
2022-09-27 11:10:39 51次 四川省2017-2018学年高一3月月考英语试卷 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. for B. though
C. but D. so
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