“You are my best friend.” It’s the nicest thing you can 1to someone. It’s also the nicest thing you can 2 someone.
Good friendships begin in middle school. It’s the 3you begin to develop your own personality. Your parents aren’t around so you 4 lots of time every day sharing your life with your classmates. You talk with them, you work with them and you become friends with them. But 5 them will become your “best” friend.
   Best friends are the people who like you and 6 you the most. They are the 7 who are easy to work with and easy to have fun with.
   Sometimes it‘s 8 to find a best friend. And sometimes you can 9 a little lonely. But just because you don’t have best friend now, it doesn’t mean you 10one in the future. Best friends seem to find each other as if by magic. And when you find your best friend, the magic will last forever.

化简：2（a+1）﹣a=____ 

初中生亮亮，平时放松对自己的要求，经常逃课，上网吧玩游戏，结交社会不良青年，品性逐渐变得恶劣。然而其家长说，亮亮之所以变得品行不良，责任完全在学校。其家长的说法你认为（    ）

139＋258=____   400－198=____  50÷8=____  46÷9=____