Scientists are studying animals to look for proof _____ they have feelings similar to ours. A.that B...
2022-06-22 19:04:40 18次 2014年上海市业水平考试英语试卷 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
Scientists are studying animals to look for proof _____ they have feelings similar to ours.
A.that B.what C.whether D.which
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