题文
I saw her in the office this morning. She ______ back to work without the doctor’s permission.
| A．couldn’t come | B．couldn’t have come |
| C．should have come | D．should not have come |
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I saw her in the office this morning. She ______ back to work without the doctor’s permission.
| A．couldn’t come | B．couldn’t have come |
| C．should have come | D．should not have come |
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