Answer:
They're going to the amusement park tomorrow.
Explanation:
The reason it's they're is because it's a contraction of they and are.
Answer:
Don't worry, I can take care of myself.
The correct answer would be
D) According to Scholastic Book Records 2011, soccer player Lionel Messi makes over $39 million dollars annually. This impressive salary is from his work as a striker for La Liga's Barcelona team (page 99).
This is correct because it leaves your point of view out, it has correct grammar, and it gives you the source.