He ________ his homework before I came.
（A）hasdone
（B）hasbeendoing
（C）haddone
（D）wouldhavedone
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更多大学英语（专升本）试题
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- 2-May I use your bike for a moment
- 3In the middle of the room stands a ________ table.
- 4You don’t mind ________ you Xiao Li, do you
- 5Listen! Who ________ in the next room The voice is so beautiful.
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