at that引导什么从句

　　At that time I had been job-hunting for six months.

　　那时我找工作已经找了六个月了。

　　At that time, the castle was in enemy hands.

　　那时城堡在敌人手中。

　　They won't find many takers for the house at that price.

　　以这样的要价，他们不会为房子找到多少承让人的。

　　We'll never agree, so let's just leave it at that.

　　咱们不可能意见一致，所以这事就这样吧。

　　At that time I was ignorant of events going on elsewhere.

　　那时我并不了解其他地方发生的事情。