根据句意及首字母提示完成下列句子13 14 15
问题描述：
根据句意及首字母提示完成下列句子13 14 15
13.This is a s______ of books.14.My s_______ lD card is lost.
15.ls thst your key in the lost and f________?
答
13.series
14.school
15.found