—Is the letter from your mother?
—Yes. But she ________ the letter herself, because she doesn't even know one word.
| A．needn't have written | B．can't have written |
| C．might not have written | D．should not have written |
推荐试卷
—Is the letter from your mother?
—Yes. But she ________ the letter herself, because she doesn't even know one word.
| A．needn't have written | B．can't have written |
| C．might not have written | D．should not have written |
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