问题
选择题
The two things _______they felt very proud were Jim’s gold watch and Della’s hair.
A．about which
B．of which
C．in which
D．for which
答案
答案：B
这题考查定语从句，因为宾语从句中短语be proud后面缺少介词of，所以用of which，句意是：他们感到自豪的两件事是：吉姆的金表和德拉的头发。选B。