It's called an external conflict.
Answer:
Explanation:
Present participle phrases and gerund phrases are easy to confuse because they both begin with an ing word. The difference is the function that they provide in a sentence. A present participle phrase will always act as an adjective while a gerund phrase will always behave as a noun.
It is more suitable to use the gerund form of the verb following the main verb, if the main verb is in the past tense (here, "finish")
Answer:
but much research has been done and more has learned about brain injuries in the last 5 years
Explanation:
because this shows they are telling more players about the injuries and informing them about the dangers of playing