It has been years ________ I returned home.
C
译文:我回家已经有好几年了。此题考查连词since的用法。since表示“从(过去某事)以来,以后或到现在”时,主句多用完成时态。又如:WherehaveyoubeensinceIlastsawyou?自从我上次见到你以后,你到哪去了?
ModernEnglishvocabularydevelopsthroughthefollowingchannelsEXCEPT______.
Weareinterestedintheweatherbecauseit_______ussodirectly—whatwewear,whatwedoandevenhowwefeel.
Thereisanambiguityinthesentence“Heisahardbusinessman”dueto______.