所给内容可以有多种表达形式：
These foreigners 【have adapted to】the weather and food in china ,so they are used to
living here.
These foreigners 【have been adapted to】the weather and food in china ,so they are used to living here.
These foreigners 【have got used to】the weather and food in china ,so they are used to
living here.
These foreigners 【have been accustomed to】the weather and food in china ,so they are used to living here.