填空题

【参考答案】

将have改为has。
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单项选择题
A.Man is also a kind of animal.B.There have been men for more than a million years.C.Like any other animals, man slowly changed through time.D.There were men a few million years ago.
A.Man is also a kind of animal.
B.There have been men for more than a million years.
C.Like any other animals, man slowly changed through time.
D.There were men a few million years ago.
单项选择题
A.Artificial hearts.B.Telescopes.C.Microscopes.D.Radio telescopes.
A.Artificial hearts.
B.Telescopes.
C.Microscopes.
D.Radio telescopes.
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