短文改错 many study show that smiling is good for our health .是再那张英语试卷出现的
问题描述：
短文改错 many study show that smiling is good for our health .是再那张英语试卷出现的
答
Many study show that smiling is good for our health, and I have a 是你自己写的还是短文改错你打错了？怎么以行又不止一个错呢？ helpful .
答
把study改成studies.
study在这儿是名词,是研究的意思.
许多研究表明,微笑有利于我们的健康.
要用复数.