<em /><u><em>"She did not understand what happened."
</em></u>It is a complete sentence since it has a subject (she) and a verb (understand), and is independent (i.e. doesn't require another clause to make sense<u><em>
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A. If Henry goes to the library, the world is a better place.
We must, therefore, acquiesce in the necessity, which denounced our Separation, and hold them, as we hold the rest of mankind, Enemies in war, in Peace Friends.
<span>The boy scouts needed "baton" twirlers, since Jeanne and her friend Radine were in ballet.</span>
