问题
选择题
The most important thing_______we should pay attention to is the thing_______I have said.
A．which that
B． that which
C． which which
D．that that
答案
答案：D
考查定语从句。第一空先行词thing前面有最高级修饰时使用关系代词that,第二个定语从句的先行词是不定代词thing，关系代词还是用that指代它。句意：我们应该注意的最重要的事情是我所说的事。