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个适当的单词,在给出提示词的空白处的括号内所给词的正确形式填空。
Born in New Zealand, Helen (live) in Guatemala for four years and then in the United States. When she was fifty, she had a dream: walking to the North Pole alone. On her journey, she was (complete) alone except for her dog, Charlie, a Canadian husky. She walked 345 miles in temperature of -50℃. When she (attack) by seven polar bears, it was lucky for her to have Charlie by her side.
答案:【1】lived【2】completely【3】was attacked