Sharks are important for the worlds 64. They eat injured and diseased fish. Their hunting activities mean that the numbers of other fish in ocean waters do not become too 65 This protects the plants and other forms of life that exist in the oceans.
51
A attack
B meet
C love
D visit
52
A terrible
B eatable
C valuable
D possible
53
A source
B existence
C friends
D fish
54
A Space
B Sky
C Land
D Earth
55
A because
B since
C because of
D by reason that
56
A whose
B which
C that
D where
57
A to
B for
C like
D with
58
A times
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