问题
选择题
It is believed that intelligence is to _____ extent _____ we are born with.
A．some, anything
B．any, something
C．any, nothing
D．some, something
答案
答案：D
本题考查代词。to some extent是固定短语“在某种程度上”。something是与is构成“系表结构”，主语是intelligence。we are born with是定语从句，修饰something。另，something后面省略了引导词that。