Last night Li Ping watched the football match at home when he ________ his homework.

依次填入下列各句横线处的成语，最恰当的一组是( )①虽然年龄渐增，可刘炜传球和掌控节奏的功夫却________，而新疆现在有的是能把球投入篮球筐的人，缺少的正是这样一位组织核心。②逾70岁的老艺术家刘文治，发挥老艺人优良的作风；把所有的台词背得________，把台词的每个细节都说得很到位。③达州在成功举办三届全国新农村文艺展演活动的基础上，承办第四届全国新农村文艺展演和四川省首届农民艺术节暨民间艺术节时愈发________。

At that time I was very worried about ____ I would become out of work.

Did you go to her birthday party held the day before yesterday?— I ____, but something unexpected happened at my home.

In the library new books have to be ___ before they are put on shelves for reader’s use.