Indefinite pronouns are used to refer to nonspecific people, things or places. In this way, the speaker uses -body or -one to refer to people, and -thing to indicate objects. As a general rule, these pronouns are consider to be in the singular form so the verb has to agree with it.
It is important to highlight that “Nothing” is used in negative sentences (example: Nobody worked yesterday.)
"Something" is used for unknown or nonspecific object and it is appears in affirmative sentences.(Example: I saw something in the kitchen).
“Everything” is used to refer to a total amount of nonspecific objects and it appears in affirmative sentences.(Example: I bought everything yesterday).
D, scuffle means a short fight, so it could replace the word fight. ‘I witnessed a scuffle.’
Answer:
B. he hunts human sailors
Explanation:
10. A (indefinite article as an adjective) strange (adjective) light (noun); the (definite article as an adjective) strange (adjective) sky (noun).
11. a (indefinite article as an adjective) small (adjective) boat (noun); the (definite article as an adjective) turbulent (adjective) river (noun).
12. late (adjective) August (noun); the (definite article as an adjective<span>) brief (adjective) northern (adjective) summer (noun).
13. Stinging (present participle as an adjective) snow (noun); strong (adjective) winds (noun); the (</span>definite article as an adjective<span>) brave (adjective) rescuers (noun).
14. Quick (adjective); efficient (adjective) workers (noun); the (</span>definite article as an adjective) long (adjective) runway (noun).<span>
15. Violent (adjective) storms (noun); the (</span>definite article as an adjective) radio signals (noun phrase).<span>
16. Intensive (adjective) study (noun); the (</span>definite article as an adjective) gold (adjective) medal (noun).<span>
17. The (</span>definite article as an adjective) silver (adjective) rays (noun); the (definite article as an adjective) bright (adjective) moon (noun); the (definite article as an adjective) clear (adjective) waters (noun); the (definite article as an adjective) little (adjective) lake (noun).<span>
18. The (</span>definite article as an adjective) naval (adjective) convoys (noun); new (adjective) supplies (noun).<span>
19. Heavy (adjective) sleds (noun); the (</span>definite article as an adjective) equipment (noun); the (definite article as an adjective) frozen (adjective) tundra (noun).
B. a star at the center of our solar system
