whatsitn.某种东西;不知道叫什么的人
whatpron.什么adj.什么;哪个adv.用于感叹句中int.什么
What are my choices?
What is the trouble?
What did we rely on?
What does Carol say?
What's on Wednesday?
What else can we do?
What is your degree?
What 's the trouble?
What can they learn?
What can I help you?