Complete the sentences with the words below.

Write one word in each gap.

sprain, rucksack, deaf, impact, endangered

1.People can be born … , or lose their hearing after an accident or a disease.

2.Being an incredible example of endurance, he made a huge … on the society.

3.How did you … your leg? Oh, I was playing volleyball.

4.Don't forget to put everything necessary in your … before going trekking.

5.Animal species could be considered … because of critical living conditions.