C. Suzie, my best friend, is also an amazing athlete.
It is the sentence that does not contain any errors in comma usage.
Usage of commas
1) to separate items in a series
2) to separate coordinating adjectives
3) to separate two independent clauses (compound sentence)
4) to separate the introductory words from the independent clause.
5) to separate nonessential words, phrases, and clauses
* All choices contain an "appositive". An appositive renames the subject.
My best friend is an appositive for Suzie.Thus it is enclosed by commas to separate it from the rest of the sentence.
Future perfect tense can be used to look back at an event or occurrence from a time in the future or to make a prediction. The correct perfect tense to be used in this sentence is;
The future perfect tense can be used to fill up the blank space here. The sentence can thus be rendered thus;
The cruise ship <u>will have arrived</u> at the last port of call before I finished packing.
This indicates that the ship will be at the port before the narrator finished packing. It is like a prediction of something that will happen in the future.
Therefore, option D is correct.
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