In the following passage, there are blanks, each of which has been denoted by a letter. For each blank, five options are given. Choose the most approp...
Question
In the following passage, there are
blanks, each of which has been denoted by a letter. For
each blank, five options are given. Choose the most
appropriate word from the options that fits the blank
appropriately.
The controlled use of fire represents one of humanity's most
______ (A) technological breakthroughs. Anthropologists
believe our ancestors first ______ (B) fire naturally caused by
lightning strikes or volcanic activity. This accidental
discovery eventually led to the ______ (C) of techniques for
creating and maintaining flames.
Early humans likely noticed how wildfires ______ (D) their
environment, both frightening and fascinating them. The
first intentional use of fire for warmth and protection
marked a ______ (E) moment in human evolution. Over
millennia, our ancestors developed increasingly
sophisticated methods to ______ (F) this powerful element,
fundamentally changing the course of civilization.
Which of the following words will fit in the blank (C)?