题目内容
If a person has never tasted ______ is bitter, he does not know ______ is sweet.
A. that; that B. what; what C. that; what D. what; that
B
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题目内容
If a person has never tasted ______ is bitter, he does not know ______ is sweet.
A. that; that B. what; what C. that; what D. what; that
B
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