people usually start preparing for the festivalprepare为什么加ing急求~快
问题描述：
people usually start preparing for the festival
prepare为什么加ing急求~快
答
start doing something
答
start后面接动名词作为宾语使用。
比如
我们开始工作吧
Let's start working.
答
固定搭配:start to do sth // start doing sth 开始做某事