Not far from the school there was a garden, _____ owner seated in it playing chess with his grandson every afternoon.

It is _______ useful book. I borrowed it from ________ school library.

Do you know a re port on English learning this weekend

t mistaken, Rio de Janeiro of Brazil waschosen as the host city for the 2016 Olympics.

下列词语中加点的字，每对读音都不相同的一组是( )