which+单数or复数?

问题描述:

which+单数or复数?

which+单数or复数,两种情况都是可以的.which意思是哪个或哪些,用单数还是复数要看具体的句子来定.如例一:The ball under the bed is mine.提问:Which ball is yours?(哪个球是你的?)例二:The books on the desk ...