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The old man used to go finishing at the weekend.(对 go finish

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The old man used to go finishing at the weekend.(对 go finishing at the weekend提问)
除了What did the old man use to do?还可以是What uesd the old man to do?吗?
The old man used to go finishing at the weekend.(对 go finish
可以
再问: why
再答: used to是情态动词,表示过去的习惯而现在不再做了,否定形式为:use(d)n't或didn't use(d) to 疑问句的形式为:Used+主语+to do...?或Did+ 主语+use(d) to do....?