【题目】In Canada, skating and ice-hockey are popular with teenagers, many of ________ play them from early age.
A. who B. that
C. which D. whom
在线课程【答案】D
【解析】考查定语从句。句意：在加拿大，滑冰和冰上曲棍球在青少年中很受欢迎，他们中的许多人从很小就开始练习它们。“many of _______ play them from early age”是定语从句，划线词作介词宾语，指人用关系代词whom引导定语从句。故选D。不能用who，关系词前面有介词，则指人的关系词只能用whom。