阅读下面材料，在空白处填入适当的内容（1个单词）或括号内单词的正确形式。
This story took place in 1903. Adam, an American businessman, was carried out to sea by a strong wind. A ship ____ (spot) and rescued him, ____ was how he got to London by accident. He at once went to the American embassy ____ (ask) for help, but was refused. Two rich gentlemen invited him home because of a bet. They asked Adam a few questions, and Adam responded ____ a polite manner. They gave him a letter and asked him not to open it until two pm. Adam left wondering ____ would happen to him.
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