A hyphen...................not sure if is this the particular answer you are looking for though
The answer is b or c I think it c
depeneds on what their actions were during the time of the risky,dangerous, life-or-death situation.
Answer:
21: C.) while being stranded in the desert
22: C.) He put on food and edible supplies.
23: A.) sarcastic
24: C.) I beat myself up having been ungrateful about being alone because I longed to return to where I was before. (Not sure)
25.) A.) He misses the life he had before embarking on his journey (Most logical answer but B is possible)
Simile uses like or as to compare two unalike things.