1. (2022·哈尔滨模拟) Nowadays students' safety has become a hot topic. Students should learn how to save lives and know how to protect themselves in the face of danger. "_____" are right according to safety rules.

①Don't walk alone at night

②Fight with the stranger who is following you

③Never swim far away from the bank

④Call the police if you find bad guys

⑤Accept anything to drink that's offered from others on a train