礼貌用语 please, thank you, excuse me 的使用 — 英语填空题
题目
情景填空：从方框中选出合适的礼貌用语填在横线上（每词限用一次）。方框：please / Thank you / Excuse me
1. ___, can you tell me the way to the post office? I want to ask a stranger politely.
2. May I borrow your ruler, ___?
3. Your friend helped you carry the books. You say, "___ very much!"