阅读下面材料,在空白处填入适当的内容(1个单词)或括号内单词的正确形式。
Helen Keller couldn't speak, read or write because she couldn't see or hear. She was an exceptionally special girl. (Luck), Anne Sullivan, who was a superb teacher, was brought in to help her. She put an object into Helen's hand and spelt out the word on her other hand. Finally, Helen's knowledge and vocabulary expanded and this changed her thinking process. But was still hard for Helen to learn (concept) like "love" and "think". Helen was (disappoint). However, one day, Helen made breakthrough. She was making necklaces she noticed that she had made some mistakes. She was uncertain how (fix) them. When she did this, Anne touched Helen's forehead and (write) the word "think" on her hand. It was first time Helen had understood such an abstract word! With Helen (grasp) the key to language, she discovered more complex words. She now understood the beautiful truth of the word "love".
答案:【1】Luckily【2】it【3】concepts【4】disappointed【5】a【6】when【7】to fix【8】wrote【9】the【10】grasping