Answer:
Immigration is when a person from another country moves to another country permanently .
Explanation:
for example: some Hispanics are immigrants because they came from dominican republic to America.
1-4 look correct to me.
for #5, you are correct that to come is not a prepositional phrase because there is no object. If I were you, I'd leave it alone and keep the one next it. all others look correct.
C because she is trying to convince that she is a great speaker
C but could possibly be D
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