Answer:
impossible
Rethink
Step-by-step explanation:
they fit the best.
In the given sentences, "impossible" and "rethink" are the appropriate words to fill in the blanks.
The first sentence, "At first, it seemed like it might be impossible to rescue the soccer team from the cave," suggests that the situation looked very challenging and difficult to overcome initially, and it appeared as if the rescue mission was not possible.
In the second sentence, "Rescuers had to rethink how they were going to get the team out," implies that the rescuers had to reconsider or reassess their initial plans because they weren't working or were impractical. Therefore, "rethink" is an appropriate word to fill in the blank.
Together, these two sentences convey the idea that the rescuers faced a difficult and seemingly impossible task but had to find a way to achieve it by reassessing their approach.