he followed his father's advice that he ( ) the car A sold B sell C had sold D would sell答案是B写清楚原因

he followed his father's advice that he ( ) the car A sold B sell C had sold D would sell答案是B写清楚原因
he followed his father's advice that he ( ) the car A sold B sell C had sold D would sell
答案是B写清楚原因

he followed his father's advice that he ( ) the car A sold B sell C had sold D would sell答案是B写清楚原因
选B,选项省略了should
语法归类：
当suggest.advise.（建议）,demand,require（要求）,command,order（命令）等词引导名词性从句时,从句的谓语动词规定用：should do或should be