问题
选择题
---Why is the girl called Kitty so sad? ---_________, I think.
A．Because she passed the maths test
B．Because of she failed the maths test
C．Because of her bad points in the maths test
D．Because her failed the maths test
答案
答案：C
题目分析：句意：为什么那个叫基蒂的女孩这样悲伤？我认为是因为她在数学测验中成绩差。Because因为，引导原因状语从句；because of因为，是一个介词短语，后跟名词或代词。根据前面so bad可知该女孩考得不好，所以选C。