题文
Research findings show we spend about two hours dreaming every night, no matter what we ______ during the day.
| A．should have done | B．would have done |
| C．may have done | D．must have done |
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Research findings show we spend about two hours dreaming every night, no matter what we ______ during the day.
| A．should have done | B．would have done |
| C．may have done | D．must have done |
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