凭单

例句：

1. 1. I need to show my ticket when I enter the venue.
   我需要出示我的票才能进入场地。
2. 2. The restaurant gave me a receipt for the meal.
   餐厅给了我一张餐费收据。
3. 3. He handed me his business card as proof of identity.
   他递给我他的名片作为身份证明。