翻译句子译英 用不定式

He is finding a house to live in.

They set out early so as to catch the first train.

This puzzle is too difficult to work out.

My wish is to become a doctor.

He is looking for a house to live in.

They started early in order to catch the first train.

This problem is too difficult to work out.
My wish is to be a doctor.

He is looking for a room to live in.
In order to catch the first train, they set off early.
The problem was so hard that it couldn't be worked out.
My dream is to be a doctor.