申し訳ございません、その本は在庫切れになっております。
tbd
Sorry, the book is out of stock.
-----------------------------------
申し訳ございません， 申しわけございません， もうしわけございません
1. I'm sorry, (it's) inexcusable
2. thank you very much (for help, etc.)
tbd
-----------------------------------
その， そん， 其の
1. that, the
2. part (as in "part two")
3. um ..., er ..., uh ...
那个；部分（如“第二部分”）
本， ほん
1. book, volume, script
2. this, present, current, ... in question, ... at issue
3. main, head, principal
4. real, genuine, regular, proper
5. counter for long, cylindrical things, counter for films, TV shows, etc., counter for goals, home runs, etc....
书
は
1. indicates sentence topic
2. indicates contrast with another option (stated or unstated)
3. adds emphasis
指示句子的主题；表示与另一选项（无论是否明确提及）形成对比；表示强调