All you need to do is send an email about this promotion to 8 people.有没有语法错呢?如何改呢?

问题描述:

All you need to do is send an email about this promotion to 8 people.有没有语法错呢?如何改呢?

应该有.应为All you need is [to] send an email about this promotion to 8 people.