Question

This is the best book _____ I have been looking for all this year.

A. who
B. whom
C. which
D. /

Answer 1

答案D
考察定语从句。先行词是指物的名词且前面有形容词最高级修饰的时候，后面的关系代词使用That，本句中的that充当宾语，可以省略，故D正确。