Remember that a dependent clause always contains a subject and a verb, but it cannot stand by itself. 1  Adverb clauses provide information about what is going on in the main (independent) clause: where, when, or why. 2  Adjective clauses work like multi-word adjectives. 3  Noun clauses can do anything that nouns can do.
An alternate juror is a spare, not unlike the spare tire for your car that rides along with you wherever you drive but is only used if one of your regular tires fails. Similarly, an alternate juror sits and listens to evidence just like the other jurors but only deliberates and votes if one of the sitting jury members is unable to serve.
When a judge cancels a trial, she declares a mistrial. In other words, she decides that some mistake has been made and the trial must begin again from the start, with a new jury. There are several reasons that a judge might declare a mistrial, including a hung jury, which is when the jury can't come to a unanimous decision. There might also be misconduct by an attorney, or improperly introduced evidence. A mistrial usually means having to start all over again.