请改成 how many 疑问句

问题描述:

请改成 how many 疑问句
There are 300 days left before the 29th olympic games starts .
改成how many 开头的疑问句,主要是不确定 改成问句后,后置定语 left 放在哪个位置?

How many days left are there before the 29th olympic games starts?