He has a lot of problems ___ (look after)the baby alone at home.
He has a lot of problems ___ (look after)the baby alone at home.
to look after
这里用不定式的主动表被动
这个空填looking after，在空格前面省略了介系词in，表示“他在家独自照看孩子很困难”，动名词作介系词in的宾语。希望我能帮助你解疑释惑。
to look after
固定搭配有两种，have problem to do sth. 或者have problem with doing sth.
请自己查阅相关书籍或询问自己的老师，不要弄混淆了。
希望能提供帮助，如有异议，请提问。求采纳。
looking after
他独自在家照顾婴儿时遇到了很多问题
have trouble in doing sth 做某事遇到困难
答案为in looking after，have problems/difficulties in doing sth 为固定搭配，表示做某事有困难或问题，in 也可以省略
looking after
语法：
have problems (in) doing sth
== have difficulty (in) doing sth.
He has a lot of problems _in looking after__ baby alone at home.
他独自一人在家照顾小孩有很大困难
考查固定搭配
have problems (in) doing sth 做某事有困难
所以要用ing
looking after ,此处in省略了
他在家独自带小孩子有很大的困难.
一个人在家带小孩子对他来说很困难.
如果您原来想填空是to look after记得哟to接的是未发生的事情
正确答案是looking after因为做着,才能发现有困难
当然这也是,搭配哟*^_^*~
He has a lot of problems looking after the baby alone at home.