根据文章意思,正确排序。
①Yes, we have a new music teacher.
②Do you like her?
③Is she old?
④Do you have new teachers?
⑤ No, she isn’t. She is funny.
⑥Yes, we all like her.
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若P是两条异面直线l,m外的任意一点,则下列命题①过点P有且只有一条直线与l,m都平行;②过点P有且只有一条直线与l,m都垂直;③过点P有且只有一条直线与l,m都相交;④过点P有且只有一条直线与l,m都异面。其中假命题的个数为 ( )