你要朝哪个方向转，必须发出信号。

You must signal which way you are going to turn.

我按哪个开关就能把它关了？

Which switch do I press to turn it off?

我的姐妹正为看哪个电视节目争吵。

My sisters were squabbling over what to watch on TV.

他们中没有哪个拿得出50英镑买一张票。

None of them could afford £ 50 for a ticket.

不知是哪个聪明人让自来水流了一夜。

Some bright spark left the tap running all night.

无论从哪个角度讲，他都是个真正的朋友。

He was a true friend, in every sense of the word.

世界上最大的城市是哪个？

Which is the largest city in the world?

你是日本哪个地区的人？

Which part of Japan do you come from?

重音在哪个音节？

Which syllable does the stress fall on?

不知哪个笨蛋把所有的文件都删掉了。

Some madman deleted all the files.

火车从哪个站台发车？

What platform does it go from?

你面朝哪个方向？

Which direction are you facing?

你喜欢哪个队？

Which team do you support?