高中英语定语从句的问题Johnsonisawarm-heartedlawyerinourcommunity,_weoftenconsultaboutlegalissues.A.whoB.whichC.thatD.where选A,答案解析上说缺介词about的宾语,我查到consultsbaboutsth,这里aboutsth都有

　　高中英语定语从句的问题

　　Johnson is a warm-hearted lawyer in our community,_weoftenconsultaboutlegalissues.

　　A.whoB.whichC.thatD.where

　　选A,答案解析上说缺介词about的宾语,我查到consultsbaboutsth,这里aboutsth都有了,所以我觉得是缺consult的宾语,所以请问到底是什么呢?

　　WhenSpringFestivalcomes,therearemany"sales"inmycity,during_____timestoreswilllowertheirnormalprices.

　　A.whose B.that C.which D.its

　　为什么选C,这是不是介词+关系代词的用法?