[单选题]be considered to do 表示“被认为做某事”，没有 be considered doing 这种结构，排除B、C项。而建立（found）这一动作发生在主语谓语 be considered 之前，故用完成形式，排除D项。故正确答案为A。
It was weird that _______, the more sleepy I seemed to get.(1分)

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