In August 1977, a satellite to gather data about the 10 million black holes which are thought to be in the Milky Way.
A、launchedB
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thebossescannotdowithoutprofit,workershaveanedge.
Robots,___(become)increasinglyprevalentinfactoriesandindustrialplantsthroughoutthedevelopedworld,areprogrammedandengineeredtoperformindustrialtaskswithouthumanintervention.
Youmayusebike________yougiveitbacktometomorrowmorning
Beinga________(high)motivatedlauguagelearner,hetakeseveryopportunitytoimprovehisEnglish
Thetheoryofblackholesinspace__(accept)bymanyseriousscientistsandastronomers.
