描述过去经历的句型 — 英语词汇题
题目
根据中文提示，补全句子中所缺的单词（首字母已给出）。
1. My grandma l____ (学习) English twenty years ago.
2. She was a t____ (教师) in a small school.
3. Now she is r____ (退休的)， but she still reads English books.
4. Ten years a____ (以前)， she couldn't use a computer, but now she can.