把下列英语句子翻译成中文（Paraphrase the following sentences）

1、She hates sweets because they are bad for the teeth
2、Doctor Chen will never go mad even if the patients keep on asking questions.
3、Ben is on a diet these days.
4、We want to keep our home tidy,but my little son always makes a mess.
5、He left because it was none of his business.

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