一、单词拼写。
根据首字母或者汉语提示写出下列单词的正确形式。
1. I’m sure she will pass the exam; I’ve got great f________ in her.
2. He has also founded an organization a________ at helping AIDS children.
3. David had prepared carefully for the chemistry exam, as he wanted to be sure of passing it at the first a________.
