Theoldcouplehavebeenmarriedfor40yearsandneveronce_______witheachother.
A、theyhadquarreledC
本题考查的是倒装结构的用法。第二分句中因有否定副词 never 提前，故应用倒装结构;第一分句中的 have been married 已限定了时态，据此可排除 D 项。
EmpiricalstudiesshowthattheprocessofSLAisaprocessofconstructingandmodifyingrulesofcommunication.
Thisisanimportantproblem_______toofewsocialscientistshaveresearched.
Idon’tmind_______thedecisionaslongasitisnottoolate.
Werefertothelimitedrangeofsoundsasthephonicmediumoflanguageandindividualsoundswithinthatrangeas______.
Theengineer______myfatherworksisabout50yearsold.
