完全断奶的时间是（）
改写病句：Shakespearewrotecomedies,tragedies,romances,andtheplayswhichwerebasedonhistoricalevents.
Itisnousearguing_______theplanbecauseithasbeenrejected.
Copernicusmaintainedthattheearth_____roundthesun.
Ifyou_______inbehavinginthiswayyouwillbringyourselfnothingbuttrouble.
