- 你是不是刚认识他?
Did you just get to know him?
- 许多词是根据拼写来发音的,不过有些不是。
Many words are pronounced according to the spelling but some are not.
- 我们是不是直飞美国?
Are we making a nonstop flight to the U.S.?
- 他还没有来,不知道是不是发生了甚么意外?
He has not come yet. Something may have happened to him.
- 我既不是雅典人也不是希腊人。
I am not an Athenian, nor a Greek.
- 你对她是不是一见钟情?
Did you fall in love with her at first sight?
- 不是因为某人不理事实它们就会不复存在了。
Facts do not cease to exist because they are ignored.
- 这把伞是不是你的?
Is this your umbrella?
- 她问我是不是发生了什么事。
She asked me if anything was the matter.
- 那是幢高楼,不是吗?
That is a high building, is it not?