working hard 后面加什么

　　She might have been paraded as a woman who was working hard to change her ways.

　　她可能已经被吹嘘成一个靠努力工作改变命运的女人了。

　　The whole class is working hard preparing for the exams.

　　全班都在努力用功准备考试。

　　He was working hard to keep control of himself.

　　他正努力克制自己。

　　I was working hard to get into Cambridge.

　　我为能上剑桥大学而刻苦学习。

　　He's tied up with his new book. He's working hard, you know

　　他正忙他那本新书。他在辛勤工作，您是知道的。