定语从句的问题1.My brother is always making good use of the time which/that he can spare.（为何填which/that ）2.In the dark street,there wasn‘t a single person to whom she could turn for help.（为何填）2.In the dark street，there wasn‘t a single person to whom she could turn for help.（为何填to whom）
问题描述：
定语从句的问题
1.My brother is always making good use of the time which/that he can spare.（为何填which/that ）2.In the dark street,there wasn‘t a single person to whom she could turn for help.（为何填）
2.In the dark street，there wasn‘t a single person to whom she could turn for help.（为何填to whom）
答
1,spare是及物动词，要跟宾语，从句中没有跟，所以句子不完整，所选的连接词既要引导句子，又要做成分，所以是连接代词which 或that 都行
2.turn to sb. for help这里把介词to提前了，而to后面缺一个指人的宾语，所以应该用连接代词who的宾格形式whom
答
1.先行词time为事物,所以用which 或者that,当然因为先行词在从句中作宾语,所以也可以省略引导词which/that.2.定语从句还原之后是：she could turn to a person for help.先行词person在从句中作介词to的宾语,且句子...