be interested in后加什么？

Now she's a teenager, she's starting to be interested in boys.

她现在已经是个十几岁的姑娘了，开始对男孩子感兴趣。

She pretends to be interested in opera, but it's only for show.

她做出一副对歌剧感兴趣的`样子，但这不过是装门面而已。

I thought she might be interested in Paula's proposal

我觉得她对葆拉的提议可能会感兴趣。

They haven't seen each other for five years; he might not be interested in her any more.

他们已经5年没有见面了。他或许对她不再感兴趣了。

He just did his job in a matter-of-fact way and was not to be interested in gaining merit, but only in avoiding making mistakes.

他在工作上进取心不大，常常是不求有功，但求无过。