"Where is it produced?" 用英语表达为 "Where is it made?" 或 "Where is it manufactured?"。

"Where it comes from" 用英语表达为 "Where it originates from" 或 "Where its source is".

例句：

"Where is this car made?" (这辆车生产在哪里？)
"Where do these apples originate from?" (这些苹果来自哪里？)
"Where is this shirt manufactured?" (这件衬衫生产在哪里？)

请注意，"生产"和"来源"在英语中有不同的表达方式。"生产"通常用"made"或"manufactured"表示，而"来源"通常用"originates from"或"source"表示。