Johnsonwas________unknownbeforerunningforthepresidency.
A、visiblyD
A 显然，明显地 B 外表上，直观地 C 垂直地，直立地 D 实际上，事实上
Theengineer______myfatherworksisabout50yearsold.
Fromthesociolinguisticperspective,aspeechvarietyisnomorethanadialectalvarietyofalanguage.
Well-arrangedsentencesareconsideredgrammaticalsentencesthatareformedfollowingasetofsyntacticrules.
Ifyouarewalkingawayfromaclocktower，youwillhearthetickingoftheclockfadetoapoint________itcannotbeheard.
Theoldcouplehavebeenmarriedfor40yearsandneveronce_______witheachother.
