Which
意思是哪个;which在句中可作主语、表语、宾语、定语等成分;
1、作主语:
This is my bag,which is your’s?这是我的书包,哪个是你的?
2、作表语:
Which is your favorite subject?你最喜欢哪个科目?
I can’t tell which is which because they are so alike.我分辨不出谁是谁,因为他们太象了。
3、作宾语:
Which do you like best?你最喜欢哪一个?
4、作定语:
Which glasses do you want?你想要哪些杯子?
Which platform does the London train leave from? 去伦敦的火车从哪个站台开出?