poison ivy is formed by two organisms.
The toxin dipped on the darts was very potent, and could kill a man in 5 hours.
When it has a subject, verb, punctuation, capitalization, a predicate, and a complete thought. A sentence is a sentence when it is handed down by a judge (or a magistrate).
The toxins were in her system, and the doctors had to save her quickly or she might die.
This is one of a series of questions copied from Penn-Foster's "Practical English" quiz.There is no answer here.
The subject and predicate carry most of the content of a sentence.
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