题目内容：

a,for,without,he,there,anything,sat,doing,time,long(连词成句）
Drinking coffee before dinner;is not good for you(改为同义句）
你必须尽可能地每晚睡9小时.
you must _____ ______ ______nine hours every night.

优质解答

he sat there without doing anything for a long time.
时间应该放在后面.
possibly sleep for