非谓语动词he hasn't been used -------------(live)in the

问题补充：

非谓语动词he hasn been used -------------(live)in the countryside yet.

答案：

to living

be used to 习惯于 +doing

======以下答案可供参考======

供参考答案1:

he hasn been used to living (live)in the countryside yet.

他还没习惯住在乡村。