下列词语中，没有错别字的一项是

It’s his brother ______ never been to Australia. You’d better take him with you.

With the government’s aid, those _____ by the earthquake have moved to the new settlements．

Students are always interested in findingout _______ they can go with a new teacher

_______time goes by, computers are made smaller and smaller and nobody knows for sure how small _______ be made but there must be a limit.[ ]