余数必须要比除数____。

小明和爸爸到电器商场买一种家用电器，发现甲品牌售价1200元，使用中，每小时耗电0.5度，使用寿命为5000小时，而乙品牌售价1300元，使用中每小时耗电0.4度，使用寿命为5000小时，每度电的价格为0.4元，在相同的使用寿命期限内，你认为小明的爸爸买____ 种品牌的电器更省钱．

作为小学“毕业联欢”的主持人，下面是我为“毕业联欢”准备的活动方案。

①活动主题：____

②开幕词必用的四字词语：____(至少4个)

③在闭幕词中要用的诗句：……我不希望我们的分别，像“孤帆远影碧空尽，____”那样的难舍，也不像“劝君更尽一杯酒，____”那样的伤感，希望我们的分别像“莫愁前路无知己，____”那样的豪迈……

用所给动词的适当形式填空，完成短文

 Children’s Safety

I ____(talk) to some students. I ____(ask) about safety rules when they ____(be) younger. Their rules were very good.

John ____(say), “I couldn’t play in the kitchen.” His mum and dad didn’t ____(like) that.

Jennifer ____(can) play the piano and she could also ____(play) games in the living room. When her mum and dad ____(not, be) home, she couldn’t cook.

Tom could play in the bedroom or the living room. He couldn’t ____(play) in the bathroom or the kitchen.

What ____(be) your safety rules when you were young? ____(talk) to younger students about these and ____(help) them.