阅读下列短文,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 exhibition——"Blossoms of Dunhuang" (hold) at the National Art Museum of China last month. It reflected upon the 60-year-long career of a famous Chinese artist Chang Shana. Her passion for Dunhuang was inspired by her father was also a famous artist. Chang Shana has devoted (she) to preserving the art of Dunhuang. (ensure) that the thousand-year-old art lives on, she's now working with an online platform to promote the sale of her works.
答案:【1】was held【2】who/that【3】herself【4】To ensure