Is it correct or not?

Darcy wrote:

5. Which is correct?Both are correct.  (1) is more common. (1) Today we're going to study 'relative pronouns' (2) Today we'll study 'relative pronouns'. 6 Are they correct? (1) is awkward; both need a comma before 'and'. (1) I'll make a list of relative pronouns and then we're looking at how to use them. (2) I'll make a list of relative pronouns and then let's look at how to use them 7 What is the difference between them? (1)I want you to write your introduction.  (2)I want you to write out your introduction. Both are heard; the 'out' in (2) is not good. 8. Are they correct? (1) Turn in your paper on Friday.  (2) Present your paper on Friday. Is "present" is used the same meaning as "turn in"? I turn in a paper to the teacher.  I present a paper (read it) to the class. If so, how can we know whether "present" means "turn in" or talking to students with his paper in class? Present also means talking to other students with his paper in class, doesn't it? Thanks for reading long writing.

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