Answer:
participates
Explanation:
if she takes part in it every time then it becomes ' participates' but if only once it could have been 'has participated'
Explanation:
relative clause
it modifies noun phrase by some grammatical tools
example
my friend who is coming from America is coming to the dinner
here who is used to indicate the noun phrase
subject verb agreement
A subject and a verb must agree, even when other words or phrases come between them.
example
The flock of geese is flying south for the winter.
The subject is flock, so the verb should be is flying.
Archimedes was known for his inventions that he made which are said to be highly useful.
<u>Explanation:</u>
Archimedes made practical creations which empowered the Syracusans to fight off the Roman attack. He secured the city by his developments, for instance, he imagined an enormous crane worked snare " the hook of Archimedes" that might lift foe sends out of the ocean. Legends tell that he additionally developed an approach to make Roman boats to burst into flames by reflection and centering of light of the sun on their boats by utilization of an enormous mirror.
A mix of this and onages and ballstats on the city dividers made it hard for Romans that constrained them to apply direct attack which was costly or the Romans.
Compound sentence (even though technically he also made the sentence longer)
