请帮我用那些疑问词填下面的问题
A:where do you want to go for your vacation?B:havaii B:---------A:ten o`clock.A:-------B:because i was tired.B:---------A:south america A:---------B;last week B:----------A;because i forgot.A:------------ B:downtown.B:----------------A:several months ago.A:----------B:at a chinese restaurant