In this task, you will be shown a passage. You need to write a fill-in-the-gap question based on your understanding of the events that might be inferred from the passage. Your question should be answerable based on the passage and only have one correct answer. Show the gap in your question with a _ .

Q: It may look like a run-of-the mill paddock, but beneath the surface lies a breath-taking phenomenon. Situated 450 km southeast of Adelaide is Mount Gambier, one of the few places in the world with the water conditions and soft limestone bedrock that give rise to spectacular underground sinkholes. Stunning images show specialist divers exploring otherworldly sites such as the 65 metre deep Kilsby’s Sinkhole and the 120 metre deep Shaft, which lie below seemingly mundane farms and paddocks. The caverns are the epicentre of The Cave Divers Association of Australia, who navigate the sites in the name of science. ‘Most people are drawn to the sport for the challenge and exploration, but they become passionate about the scientific elements afterwards,’ said John Vanderleest, the national director of the Cave Divers Association of Australia.Mount Gambier is one of the few cities in the world with the right conditions for underground sinkholesIt features spectacular sites like Kilsby’s Sinkhole and the The Shaft, which are found below paddocksThe caverns are among 30 identified cave sites used by the The Cave Divers Association of AustraliaCave diving involves rigorous training to explore elusive caves using specified gear and equiptment

A: _ use scuba gear and harnesses to traverse the caverns and unearth marine life and geographic discoveries.
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Q: (CNN) -- On July 13, 2013, a Florida jury found George Zimmerman not guilty in the death of Trayvon Martin. The former neighborhood watchman never denied fatally shooting the unarmed teen, but he said he did so because he feared for his life. The intensely watched murder trial inspired passionate debate about race relations in America, gun laws, profiling and self-defense, and a good deal more. Here's where some of the key players are one year after the verdict. George Zimmerman Zimmerman has popped up a few times post-verdict. Just days after his acquittal, he helped rescue of a family of four from an overturned SUV. His wife, Shellie, filed for divorce in September, citing irreconcilable differences -- and in November, Zimmerman was arrested and charged with felony aggravated assault for a domestic dispute with his girlfriend. Prosecutors dropped the case in December after Zimmerman's girlfriend recanted part of her story.Zimmerman found not guilty in death of Travyon Martin on July 13, 2013Since then, Zimmerman has turned to painting to express himselfMartin's parents speak to groups about preventing ethnic profilingJurors have largely stayed out of the spotlight

A: To date, little is known about the mainly faceless jurors who deliberated for more than 16 hours before rendering _'s fate.
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Q: In the exceedingly tight contest to become Iowa's next senator, Saturday's closely watched debate between Bruce Braley and Joni Ernst had the candidates trying to make each other blue by talking green. When it comes to energy, Ernst, a Republican state senator, and Braley, a Democratic congressman, both have controversial positions to defend to voters. Ernst elaborated on her position to shutter the Environmental Protection Agency, a move that critics say will make Iowa more polluted. Braley, meanwhile, explained his flip-flopping on the Keystone Pipeline that has left some Iowans skeptical about his commitment to create jobs. The debate made it clear: Environmental regulation is the issue where the 2014 hopefuls really differ.Republican Joni Ernst defends her position to eliminate the EPA for overreachBruce Braley defends his decision to reverse his support for the Keystone PipelineBoth candidates accused each other of having ties to dark money

A:
The states know how to best protect their natural resources, _ said, saying that "the EPA has overreached."
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