题目内容：

I watch TV____three hours a day 填介词
the panda was born____2o'clock____May1,2007
He doesn't watch TV___night

优质解答

I watch TV__for__three hours a day .表示一段时间用介词for the panda was born__at__2o'clock__on__May1,2007时刻前用at,具体到某一天前用onHe doesn't watch TV_at__night固定用法：at night 在晚上...