题目内容
【题目】He found it difficult to read, ________ he had a problem with his eyesight.
A. butB. forC. or D. so
【答案】B
【解析】
试题分析：考查连词。A. but但是；B. for因为（并列连词）；C. or或者，否则；D. so所以。句意：他发现读起来很难，因为他的视力不好。故选B。
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题目内容
【题目】He found it difficult to read, ________ he had a problem with his eyesight.
A. butB. forC. or D. so
【答案】B
【解析】
试题分析：考查连词。A. but但是；B. for因为（并列连词）；C. or或者，否则；D. so所以。句意：他发现读起来很难，因为他的视力不好。故选B。