问题详情：
词汇运用；根据句意及首字母提示补全单词。
1. My grandmother often uses a f to make her cool in the hot days.
2. I think working hard is the secret of the s .
3. Don’t speak to Jack like that. After all (毕竟) he is j a little child.
4. —Thanks a lot.
—It’s my p .
5. Tom is going to the post office to buy a s for his letter.
【回答】
1. fan 2. success 3. just 4. pleasure 5. stamp
知识点：单词拼写
题型：完成句子
