Choose the most appropriate word to complete the sentences below.
Has improve
Have improved
Had improved
Has improved
On the, geologists
Of the, geologists
In the, geologist
At the, geologist
Refer, sound
Refers, sounds
Refers, sound
Refer, sounds
Issue, in
Issues, on
Issue, at
Issues, of
In the
On the
At the
Of the
Menaces
Menaced
Menace
Menacing
Eradicate,continues
Eradicate, continue
Apathetic, continues
Endure, continue
Not only, on
Not only, out
Not only,too
Not only,again
Surfaced
Surfaces
Surface
Surfacing
Efforts, knew
Efforts, know
Efforts, knows
Efforts, known
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