Scientists think that there has been life on Earth for _______ years. A. millions B. millions of C. ...
2023-02-20 02:50:05 19次 2012-2013学年北京市八年级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：
Scientists think that there has been life
on Earth for _______ years.
|
A. millions
|
B. millions of
|
C. million of
|
D. million
|
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