这里的从句少了个什么?是which 还是whom 还是whoseThe biggest problem people have is trying to implement all 20 ways .problem ）people

这里的从句少了个什么?是which 还是whom 还是whoseThe biggest problem people have is trying to implement all 20 ways .problem ）people
这里的从句少了个什么?是which 还是whom 还是whose
The biggest problem people have is trying to implement all 20 ways .
problem ）people

这里的从句少了个什么?是which 还是whom 还是whoseThe biggest problem people have is trying to implement all 20 ways .problem ）people
that：这是定语从句,当先行词被最高级修饰时,即题中的The biggest .只能选用that作关系代词,不能选which也不能选其它的关系代词,
The biggest problem that people have is trying to implement all 20 ways中
that people have is trying to implement all 20 ways是定语从句,
that在定语从句中可以省略,因为它作have的宾语

which

which