Somestudentsfromaskingquestionsinclass.（）
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Robots,___(become)increasinglyprevalentinfactoriesandindustrialplantsthroughoutthedevelopedworld,areprogrammedandengineeredtoperformindustrialtaskswithouthumanintervention.
Apersonisluckyifhiscareer________withhisinterestandhobby
InAugust1977,asatellitetogatherdataaboutthe10millionblackholeswhicharethoughttobeintheMilkyWay.