下列加点字的注音都无误的一组（ ）

31 ________was difficult to save the places and buildings _____destroying their old beauty

is hard is to do good all one’s life and never do anything bad.

下列各句中，标点符号使用正确的一句是（ ）

In the Barcelona Olympic Games, the Chinese team totally got 87 gold medals, __________ 51 were won by women players.