You may not catch the train if you do not ...

★ Compound and Complex Sentences

You may not catch the train if you do not hurry and pack.

A. Incorrectly punctuated

B. Correctly punctuated

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Since you are my best friend I will be loyal to you always.

Where does the comma belong?

A. between friend and I

B. between you and are

C. between loyal and to

D. This is a correctly written and punctuated complex sentence.