It never occurred to humans until the mid-1990s some animals can be cloned. A. where B. that C. when...
2023-02-02 17:09:17 89次 2012届度福建省、安溪一中、惠安一中高二下学期期中联考英语题 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
It
never occurred to humans until the
mid-1990s some animals
can be cloned.
A.
where B. that C.
when D. what
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