Answer:
In passive sentence constructions, the direct object (the objective or goal) is in the subject position. Active structure puts the actor in the subject position. To find the actor of a sentence, look for the action word – the verb – and figure out who did it. Sometimes, you may need to add an actor to the sentence
<span>Because they are not enclosed in a phosoplipid membrane as are other organelles
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<span>As many times as necessary.
An essay may need to be revised until the author of it is satisfied. </span>
