She sounds lonely because the line you showed me sounded sad and she wants someone there.
This is D., a hyphen. I You would write it as 'old-fashioned'. There would only not be a hyphen if it was 'old fashion' without the 'ed' at the end.
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Ms. Thayer, our town's police chief, visited our class today.
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This is the part when he is on horseback, about to warn the town that the British are coming. In the first line, he starts heading toward the village streets with "the fate of a nation" counted on him to do so. This because he is about to warn everyone so that they can be prepared to fight. This is shown through the lines "the spark struck out by that steed", meaning that the villagers are counting on his warning to change history by sparking the Revolution.
Doctors warned people to stay away from the medical tent where patients were being treated in order to avoid contagion. This means to avoid the spread or transfer of diseases or infection. Contagion means the communication of illnesses from one person to another, most especially when in close contact.