Which of you wish to go with me?你们中间哪些人想和我一起去?
Which is heavier, iron or copper?铁和铜哪一种更重?
Take the sickle Which is lying on the grindstone.把磨刀石上的那把镰刀拿去。
That is the house which I built.那是我建的房子。
He said he had lost his bicycle,Which〔and that〕 was untrue.他说他的自行车丢了,那不是真的。
Ask him which he wants.问他一下他要哪一个。
Mary and Susan are twins and I can't tell which is which.玛丽和苏珊是孪生姐妹,我分不出来谁是谁。
I can't decide which to choose.我无法决定要选哪一个。
