病句修改There are a lot of things on sell in the mall

病句修改There are a lot of things on sell in the mall
病句修改There are a lot of things on sell in the mall

病句修改There are a lot of things on sell in the mall
答案：把on sell 改成on sale
原因：sell是动词,前面不能用介词,而sale是名词,前面可以用介词,be on sale在销售中,固定词组
翻译：在小商业区有许多东西在销售.

sell 改为 sale

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sell ----------SALE

sell -> sale

There are a lot of things on sell of the mall