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下句找语法错误并改正及说明原因

来源:学生作业帮 编辑:作业帮 分类:英语作业 时间:2024/05/19 22:35:08
下句找语法错误并改正及说明原因
The quality of multivitamin tablets is determined by how long its potency can be protected by the manufacture's coating material.
The quality of multivitamin tablets is determined by how long their potency can last protected by the manufacture's coating material.
1 tablets复数概念,所以是their.
2 last 作为动词谓语存在.protected 作为 last 的伴随状态,作状语使用.