The split between humans and apes is believed by scientists______15 to 20 million years ago. A. to b...
2022-12-03 09:23:34 106次 2013-2014学年江西省吉安市高三上学期期中考试英语试卷（解析版） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
The split between humans and apes is believed by
scientists______15 to 20 million years ago.
A. to be occurring B. having
occurred C. to have occurred D. to occur
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