Evidence has been found through years of study______children’s early sleeping problems are likely to...
2022-12-04 05:02:37 21次 2014届黑龙江省高三10月月考英语试卷（解析版） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
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
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