catch sharks and cut off their ____and throw the shark _______the ocean.
cruel, and _______ to environment.
Without a fin, a shark can _______ swim
and slowly ________.
at the top of the food _____in the ocean’s ________
If their numbers ___ too low, it will bring_____ to all ocean____
Many believe that sharks can never be
____ because they are the____ in their food chain.
around 70 million sharks ar_____and_______ in this industry every year.
The numbers of some kinds of sharks have______over 90 percent in the last 20 to 30 years.