Which

意思是哪個;which在句中可作主語、表語、賓語、定語等成分;

1、作主語：

This is my bag,which is your’s?這是我的書包，哪個是你的?

2、作表語：

Which is your favorite subject?你最喜歡哪個科目?

I can’t tell which is which because they are so alike.我分辨不出誰是誰，因為他們太象了。

3、作賓語：

Which do you like best?你最喜歡哪一個?

4、作定語：

Which glasses do you want?你想要哪些杯子?

Which platform does the London train leave from? 去倫敦的火車從哪個站臺開出?