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Choose the word among A, B, C, D that best fits the blank in the following passage:
Human beings (36)
to protect only the beautiful and non-threatening parts of our environment. We tend to pay
more (37) to animals on land than any other large sea animals. Environmentalists have not done much enough to
help save the Pacific Ocean sharks (38) population has decreased nearly to the point of extinction.
Sharks are among the oldest creatures on Earth, having survived in the seas for more than 350 million years. The fact
that they have managed to live in the oceans for so many millions of years is enough proofs of their efficiency and
adaptability to change environments. It is time (39) human beings to begin considering the protection of sharks
as (40)
important part of a program for protection of our natural environment.
Cả
A.
C.
advise
B. make
let