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

时间:2022-06-01 21:51:37

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

A.though

B.for

C.but

D.so

答案及解析: B

解析:

根据句意可知,前后两句话之间是因果关系,并且此处表示一种补充说明的原因,前面有逗号,应该用for。其他三项不能表示因果关系。故选B。

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