Evidence has been found through years of study children’s early sleeping problems are likely to continue when they grow up. A．why B．how C．whether D．that 题目和参考答案——青夏教育精英家教网—

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Evidence has been found through years of study______children’s early sleeping problems are likely to continue when they grow up.

A．why

B．how

C．whether

D．that

解析试题分析：考查同位语从句：句意：通过多年的研究已经发现了证据，孩子们早期的睡眠问题可能随着长大会继续。通过分析句子结构，可知这个句子中包含一个同位语从句，说明evidence的内容，用that连接同位语从句，that在同位语从句中不作任何成分，且没有实际意义，选D。
考点：同位语从句的考查

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