This book covers many topics,___(include) travel,hotels,food and so on

题目

This book covers many topics,___(include) travel,hotels,food and so on

答案

This book covers many topics,【including】 travel,hotels,food and so on
【including】 travel,hotels,food and so on介词短语做状语,补充说明【many books是包括哪些方面的书】.