改错There are not many children of her age in where we live.为什

in 是介词,后面必须跟名词构成介词短语,
这里where we live是定语从句,前面应该有它修饰的名词.
因此这句话不仅需要删掉in,where we live也有问题.
再问： 那能不能把where换成which啊？
再答： in which 也是用来修饰名词用的，而这句话显然不是修饰age，应该改成： There are not too many children of her age in the place where we live.