a. Keep a stiff upper lip - To remain brave and composed in the face of adversity. Example: "Despite the challenges, she kept a stiff upper lip and persevered." b. Burst into tears - To suddenly start crying uncontrollably. Example: "When she heard the news, she burst into tears." c. Cold feet - To feel nervous or hesitant about something. Example: "On the day of the performance, he got cold feet and almost backed out." d. Jump for joy - To be extremely happy and excited. Example: "When they won the lottery, they jumped for joy." e. Eat one's heart out - To feel intense jealousy or regret. Example: "When she saw him with his new partner, she ate her heart out."