1 . 阅读下面短文，根据短文内容填空。在未给提示词的空白处仅填写1个恰当的单词，在给出提示词的空白处用括号内所给词的正确形式填空。
The Qinming Festival, originating from the Hanshi Day, is an opportunity for people 1 (remember) and honor their ancestors at tombs. And it became a festival in 732. Then observance (纪念) of Qingming found a firm place 2 Chinese culture and continued for over 2500 years. The Qingming Festival is a time 3 the sun shines brightly, trees and grass become green and nature is again lively. Since ancient times, people 4 (follow) the custom of Spring Outings.
