The ground is wet; it _______ last night.
（A）might have been raining
（B）can have rained
（C）should have rained
（D）must have rained
参考答案
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更多大学英语单项选择题库试题
- 1We preferred to put the meeting off rather than __ it without adequate preparation.
- 2When my friend saw the menu was all in Chinese he looked rather __________.
- 3Good heavens! There you are! We ____ anxious about you, and we ____ you back throughout the night.
- 4What was one of the reasons that the South was defeated in the Civil War?
- 5____ your teacher like you
