Scientists think that the continents _______ always where they ________ today.
（A）aren’t; are
（B）aren’t; were
（C）weren’t; are
（D）weren’t; were
参考答案
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更多大学英语单项选择题库试题
- 1When my friend saw the menu was all in Chinese he looked rather __________.
- 2The second technique suggests that you just imagine ___________.
- 3He asked who I voted for and I said it was my own _______.
- 4There has been a ____ in fashion from formal to more informal dress.
- 5Good heavens! There you are! We ____ anxious about you, and we ____ you back throughout the night.
