2-17. It is easier to make a plan than carry it out.

题目

2-17. It is easier to make a plan than carry it out.
carry 错了应该改为 为什么~

答案

.It is easier to make a plan than （to） carry it out
少了一个to,than用平行结构
前面是 to make a plan ,所以后面要是to） carry it out