a for which b of which c where d with which 选什么 为什么 考查什么语法 缺少什么成分

问题描述:

a for which b of which c where d with which 选什么 为什么 考查什么语法 缺少什么成分
people in the earthquake-stricken areas are faced with lots of problems ,______the lack of the shelter is the most serious

答案选 b of which 从句是为了补充说明主句中的 problem,缺的是一个连词.which 前面加介词,如何选? 因为 which 就是指代 problem 的,介词就取决于这里和 problem 的衔接了,是 of problem ,for problem 还是 with pro...