what

pron./det.什么;…的事物;无论什么;凡是…的事物;多么;真;太

What difference will it make if he knows or not?

他知不知道有什么关系吗？

What time do you leave the house in the morning?

你早晨几点出门去上班？

You can't stop people from saying what they think.

人们怎么想就会怎么说，你阻止不了。

What time did you come?

你什么时候到的？