第1个回答 2011-08-04
do you have to go to bed before 10pm?
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第2个回答 2011-08-04
Must you go to bed before 10:00 o'clock?
第3个回答 2011-08-04
Must you go to bed before 10 o'clock?
第4个回答 2011-08-04
You must be 10 before you go to bed?
第5个回答 2011-08-04
Must you go to bed before 10 o'clock?