【正确答案】 A

【答案解析】[解析] 选项A：convince意为使确信，常用搭配为：convince sb. of/convince sb. that使某人确信。选项B：encourage意为鼓励，常用搭配为：encourage sb. to do鼓励某人做某事。选项C：consult意为商量，常用搭配为：consult with sb. about sth. 与某人商量某事，而consult sb. 请教某人，找医生看病，consult sth. 查阅(书、地图等)。选项D：concern意为关心，常用搭配有：as far as I"m concerned，……就我而言：for mv part，be concerned about/for sth. (be concerned that)担忧，be concerned with sth. 与某事物有关=be about sth. 。另外，注意concern的非谓语动词用法：the concerned mother关切的母亲，the parties concerned有关当事人。所以，本题选A。