U.S.News____________rankingsofcollegessince1983.Theyareaverypopularresourceforstudentslookingtoapplytouniversitycampus.
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暂无解析
Ofcourse，（）mostimmigrantsdidnotgetrichovernight，buttheofthemwereeventuallyabletoimproveupontheirformerstandardofliving.
I don’t like _____ bills but when I do get them I like _____ them promptly.
____ you were busy, I wouldn’t have bothered you with questions.
LastMarchthe__________ofa19thcenturycargoshipwasfoundbyanunderwaterarchaeologicalteam.