1 . 难怪有人说中国人民抗日战争的伟大胜利将永远铭刻在人类正义事业史册上。
________________ someone says that the great victory of the Chinese people's war of resistance against Japan will be forever engraved in the history of human justice.

2 . 难怪许多（即便不是大多数）中国最杰出的学者和科学家都出自联大，包括两位获得诺贝尔奖的物理学家——杨振宁和李政道。
________________ many, if not most, of China’s leading scholars and scientists emerged at Lianda, including the two Nobel Prize­winning physicists, Yang Zhenning and Li Zhengdao.

3 . 很多野生动物很难适应现在的环境。(it作形式宾语)
Many wild animals __________________ the present environment.

4 . 在我看来，在老师的帮助下我们把定期组织一些课外活动设为一项规定会更好。(it作形式宾语)
In my opinion, it is better to ________________ with the help of our teachers.

7 . 结果这些兔子对病毒产生了免疫力，它们的数量再次激增。
________________ they developed an immunity to the virus, and their numbers exploded once again.

9 . 努力工作。做好分内的事是你的责任。(it作形式主语)
Work hard. ________________.