802. The letter "x" stands for an unknown number.字母x代表未知数。

801. She intends to make teaching her profession.她想以教书为职业。

800. Not until last week did I get a work permit.直到上周我才拿到工作许可证。

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。