<span><span><span>A. The bird flew north of the beach.</span> </span><span><span> B. The boys surrendered, but they should of fought.</span> </span><span><span> C. The three girls might of broken the records.</span> </span><span><span> D. We should of left early.</span></span></span>
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<span><span><span>These were the provided answers.</span></span></span>
<span><span><span>The correct answer would be "The bird flew north of the beach."</span></span></span>
<span><span>...all of the others if you read them out loud and semi-quickly, you would hear that the sentence sounds like "slang" which therefore makes then incorrect. The correct usage lies within ...flew north of the beach. </span></span>