1.We are / feel proud of that outstanding/excellent writer/author.
2.I don’t think that David’s performance is so good as that of Alice/Alice’s. / I don’t think David performed/has performed so well as Alice did/has.
3.Classics/Classic works, which have stood the test of time, can always expand/broaden/widen readers’ horizons/views.
4.It was his strong interest in nature in his childhood that made him an world famous biologist.
5.After getting into trouble/meeting with difficulties again and again, he realized that he couldn’t perform well unless he put aside his personal interest and cooperated with others.