Hello ,<br/><br/>1. The party ended at 7 o'clock.<br/><br/>I have to frame a question to get the answer. I am given the question word "what".<br/><br/>Now, I think it in two different way.<br/><br/>a). What ended at 7 o'clock?<br/><br/>b) What time did party end?<br/><br/>Which one is correct? (a) or (b).<br/><br/>Thanks.