问题
选择题
The reason ______ Old French made contributions to Middle English is ______ English borrowed many words from it.
A．why; because
B．that; because
C．why; that
D．that; that
答案
答案：C
考察定语从句和宾语从句.根据先行词reason可知引导词用why,当句子中已有其他引导词时,后面引导词习惯用that,故选C.