Question

【题目】The book _______ he bought yesterday is very interesting.
A.why
B.which
C.who
D.what

Answer 1

【答案】B
【解析】结合选项分析句子结构可知此处为含有定语从句的主从复合句，先行词the book为物，且关系词在定语从句中作宾语，故用which引导定语从句，选B。