Answer:
C. According to the author, “a shark’s teeth are constantly being replaced, moving forward along a groove in comparison to a conveyor belt.”
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Explanation:
Answer:
Present is the right answer.
Explanation:
It is not past or present participle because the verb is not in a form wich ends in <u>'</u><u>ing</u><u>'</u><u>.</u><u> </u> Past is also not correct because the verb is not in past tense, and she is talking about what's currently happening. Therefore Present should the right one.
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