根据实际情况回答。
2. Is your bedroom big? 3. What's in your bedroom? 4. What colour is your bed? 5. Do you like it?
“苗苗杯”羽毛球单打赛共有8名选手参加,如果采用单循环赛制,决出冠军和亚军,至少要( )场;如果采用淘汰制比赛,决出冠军和亚军,一共要( )场。