what shoud we do next?the first thing is find,to find a room living ,to live ,to live in 原因
问题描述：
what shoud we do next?the first thing is find,to find a room living ,to live ,to live in 原因
答
be to do something 不定式做表语
答
第一空to find a room，动词不定式。
第二空to live in，live是不及物动词，接宾语时要加介词。
答
to find a room,动词不定式.
to live in,live是不及物动词,接宾语时要加介词.