分类：教育/科学-外语学习-英语考试
问题：请问用Have还是Has？Why？Who()abike?Than 
Who (  ) a bi?Thanks for answering.
回答：Who ( has) a bike?
what 和who 作主语时,谓语动词根据表语或宾语判断；
Who is she?
Who are them?
What is it?
What are they?