【题目】Hobby can be almost anything ___________ a person likes to do in his spare time.
A.which
B.that
C.what
D.why

【答案】B
【解析】考查定语从句。句意：爱好可以是一个人在业余时间喜欢做的任何事情。“______ a person likes to do in his spare time”是一个限制性定语从句，修饰先行词 anything，是不定代词，指物，从句中作宾语，只能用关系代词that。故选B。