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 _ .
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Question: It was no accident that Nasa crashed one of its Apollo 16 rocket boosters onto the moon, but the researchers never intended to lose it. In April of 1972, the booster drifted off and was never seen again, unable to transmit tracking data and reveal its whereabouts because of a malfunction. Now, almost 44 years later, the crash site of the Saturn V stage-three booster has finally been located. The site was identified by Jeff Plescia, a scientist from Johns Hopkins University, and expert in finding objects that have been lost in space. Plescia used high-resolution images produced by the Lunar Reconnaissance Orbiter Camera (LROC) system, according to Science Alert.Stage 3 Saturn V rocket booster disappeared in 1972 Apollo 16 missionThe booster was set to crash onto the moon, and take measurementsMalfunction caused it to become lost, unable to transmit tracking dataJeff Plescia located crash site using the Lunar Reconnaissance Orbiter

Answer: Still, Science Alert says _ establish a seismic sensor network on the moon in order to test certain theories.


Question: Champions League holders Real Madrid will face local rivals Atletico Madrid - the team they beat in last season's final - in the quarter-finals of this season's competition. Los Blancos needed extra-time to beat Diego Simeone's men in Lisbon May but the two Madrid sides will face each other again next month as they look to make it all the way to Berlin. Carlo Ancelotti's side scraped past Schalke to reach the last eight, while Atletico required a penalty shootout to see off Bayer Leverkusen at the Vicente Calderon on Tuesday. Real Madrid trio Cristiano Ronaldo, Gareth Bale and Karim Benzema (L-R) are looking to retain the trophyReal Madrid draw Atletico Madrid in UEFA Champions League last eightThe two sides met in last season's final, with Real coming out on topBarcelona face Paris Saint-Germain, while Bayern Munich take on PortoArsenal's conquerors, Monaco, will meet Serie A champions JuventusQuarter-final ties to take place on April 14, 15, 21 and 22CLICK HERE to see how it all unfoldedThese sides have met twice before in the Champions League quarter-final stage. The French side progressed 3-2 on aggregate in 1995, while Barcelona went through on away goals in 2013 (3-3 on agg).Barcelona have never won in three away trips to face PSG (L2 D1), including a 3-2 defeat in this year’ group stage.PSG have lost one and drawn two of their three visits to the Nou Camp to face Barca, including a 3-1 defeat in this year’s group stage.Both teams have scored in six of the seven previous meetings between the sides in European competition. The only game where one team failed to score was in the 1997 Cup Winner’s Cup final, with Barcelona winning 1-0.Lionel Messi has scored three goals in four Champions League games against the French side, while Neymar also scored in both group stage games against them this season.Barca have lost just one of their last 11 games against French opposition, though this was against PSG this season (W6 D4).Atletico Madrid and Real Madrid have already met six times this season with Atleti remaining unbeaten, winning four (including both league clashes) and drawing two.Atletico Madrid have scored exactly once in all four previous European meetings with city rivals Real, winning just once and losing three.Including this season, there has been at least one Spanish team in the Champions League quarter-final for the last 10 campaigns.For only the third time in European Cup history, a quarter-final tie will feature two Spanish sides; however it is the second season in a row that this has happened (Real Madrid v Sevilla in 1958 and Atletico v Barcelona in 2014).Bayern only lost 1 of 22 competitive matches versus Portuguese teams (13 W, 8 D): the European Cup final 1987: 1-2 versus Porto.Bayern won the last knockout tie against a Portuguese team 12-1: 5-0 A and 7-1 H against Sporting in the Last 16 of the CL 2008/09.Porto's one previous knockout European Cup victory over a German side came in the 1987 final; they have been eliminated from three knockout ties since, two against Bayern and one against Schalke.Bayern Munich have kept seven clean sheets in their last nine against Portuguese sides, conceding just twice in total.These two sides have only ever met before in the 97/98 Champions League, when Juventus won 4-1 at home and lost 2-3 in Monte Carlo on their way to the final where they lost 1-0 to Real Madrid.In their 24 European meetings with French teams (including Intertoto), the Old Lady have lost just five times, winning 14 and drawing five.However in the Champions League only, Juve has won just two of their six games against French sides (one win v Monaco in 1998 and a victory against Nantes in 1996).In their 11 European meetings with Italian sides, Monaco have won just three times (D2 L6), although two of those victories have come in their last three clashes with Serie A sides.

Answer: April 15 - PSG vs Barcelona, Porto vs _.


Question: (CNN) The signs tell divers the area is dangerous. Even experienced ones have died there. Ten people, including two who were found Monday, have had fatal incidents inside the Eagle's Nest cave dive area in Western Florida since 1981. The Hernando County Sheriff's Office said Patrick Peacock and Chris Rittenmeyer went diving on Sunday afternoon with a third man, who reported the duo missing. Search and rescue divers found their bodies the next day in a "very dangerous and complex area of the cave system," the sheriff's office said. Peacock and Rittenmeyer had come from Fort Lauderdale for a three-day dive at Eagle's Nest, a famous dive spot near Weeki Wachee, located in the Chassahowitzka Wildlife Management Area, about 60 miles north of Tampa.Police say the men had dived at the site beforeThe deaths over the weekend make 10 at the Eagle's Nest since 1981, an expert says

Answer:
Both men were experienced divers who had both dived _ several times, the sheriff said.