完成句子 1. In America, you _____ _____ _____(不应该) eat with your hands. 2. In Peru, you _____ _____ _____(应该) talk at the table. 3. In China, you can _____ _____(端起) your bowl to eat. 4. In Brazil, you should _____(擦) your mouth _____(用) your napkin every time you take a drink. 5. It's _____(无礼的) to ____your chopsticks _____ _____(把……插入) your food. 6. You shouldn't _____ _____(指向) anyone with your chopsticks.