TASK DEFINITION: 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 _ .
PROBLEM: West Des Moines, Iowa (CNN) Donald Trump had every reason to feel optimistic Monday. His poll numbers were up; he had secured two prominent endorsements in the space of a week; and even the weather seemed to be cooperating, with a snowstorm coming in from the west expected to hold off until after midnight. Sarah Palin endorses Donald Trump And then, he lost, coming in second to Ted Cruz. Trump spent January in full-on attack mode against Cruz. Trump questioned whether Cruz qualifies as a "natural-born citizen" eligible to serve as president. He went after the evangelical vote, winning the endorsement of Liberty University President Jerry Falwell, Jr., but didn't back up the appeals with a ground game. And then he sat out the final debate, opting for a rally across town at the same time.Donald Trump finished second in the Iowa caucuses on Monday nightHe sat out the final debate in Iowa and he acknowledged Tuesday that his plan might have backfired

SOLUTION: With _'s win and Marco Rubio's much stronger-than-expected finish Monday night, Trump now urgently confronts the danger of the Florida senator chipping away at his establishment backing in upcoming contests.

PROBLEM: (CNN) The proportion of Zika-related birth defects during 2016 was nearly 20 times higher than the number seen during the pre-Zika years, according to a new report from the United States Centers for Disease Control and Prevention. In particular, brain abnormalities or microcephaly, where a baby's head size is smaller than expected, occurred about 33 times as often in pregnancies with Zika infections than in the pre-Zika years. Zika, a virus transmitted primarily by mosquitoes and unprotected sex, has been spreading around the globe with locally transmitted cases in the US were first reported in Florida and Texas during 2016. Currently, there is no vaccine to prevent infection.Brain abnormalities or microcephaly occurred about 33 times as often in pregnancies with Zika infectionsNew report is based on data from surveillance programs in three US states

SOLUTION: "Other data has shown us the highest risk is the first trimester and early in the second trimester but we don't think there's any safe time in pregnancy to be exposed to _ virus infection," said Honein.

PROBLEM: If a golf course were to be created in Hell it might resemble the now serene landscape of Gallipoli, where the blood of thousands was spilled a century ago in one of World War I’s most spectacular Allied failures. An eerie serenity pervades the rolling landscape of this peninsula and, in the bright spring sunshine, there could scarcely be a more peaceful spot for a Sunday afternoon stroll. But a chill is never far from the spine, whatever the temperature. Scroll down for video Sulva Bay, Gallipoli Peninsula, Turkey, where in the World War I there were nearly 400,00 Allied casualties25 April is the centenary of the  ill-fated Gallipoli invasion by Allied troopsAllies sustained heavy loses, mown down by a better-equipped Turkish armyBeautiful peninsula is a magnet to relatives of soldiers killed in the battleThe Water Diviner, Russell Crowe's directorial debut, is set in its aftermath

SOLUTION:
_ soldiers land and begin the attack at Gallipoli, sometimes known as the Dardanelles Campaign.