问题
选择题
The reason _____ he could not go there was _____ his grades were too low.
A．why ; because
B．that; because
C．why; that
D．that; that
答案
答案：C
考查名词性从句。The reason why … is / was that …，……的原因是……。Why引导定语从句，先行词reason在从句中作原因状语，that引导表语从句。故选C。