799. My father is at home looking for the ticket.我爸爸正在家里找票呢!

798. It took him a little time to fix that watch.他很快就把表修理好了。

797. I'm not sure whether I have locked the door.我没把握是否锁了门。

796. I think I've filled in everything correctly.我想各项都填对了。

795. I have 4 books and 2 magazines to check out.我有4本书和2本杂志要借。

794. I don't think it will lead to a good result.我认为这事不会有什么好结果。

793. I determined that nothing should be changed.我决定什么都不改变。

792. His previous attempts had been unsuccessful.他以前的尝试没有成功。

791. He had to choose between death and dishonor.他不得不在死亡和耻辱之间选择。

790. He devoted his life to the study of science.他把毕生献给科学研究。