一个英语问题；reading -------(occupy) most of my free time.这里的空格为什么

一个简单的英语问题.Most Children need encouragement in time of failur He spends most of his time in traveling.这里的travel为什么加ing My free time英语作文 my free time 英语作文 作文 帮写一个 most difficult time of my life的作文 300字左右 my free time的英语作文60词 What is m___,it is free most of the time. 英语. In his free time,he likes reading同义句 My mother enjoys reading books in her free time.对reading boo I spent most of the time reading改错 My free time初二英语作文 英语作文《In my free time》