在等差数列{an}中，a7=8，前7项和S7=42，则其公差是（  ）

A. Be a Good Listener               B. Care About the Small Acts

C. Begin a Conversation             D. Make Time for Friendships

E. Give a Hand to New Neighbors     F. Remember Their Names

5 Ways To Build Friendship with Your Neighbors

    ①____

    Often neighbors don't even know each other's names. But it's okay to be the one to break the ice. So as you see them at work in their yards, smile, wave and say hello. Ask how their kids are or what they think of the price at the local supermarket.

    ②____

    Your new neighbors may be feeling lonely and unsure, especially if they're far from home. Your help will be welcomed by them. Leave your telephone number to them. If they have any questions, they can call you.

    ③____

    Most of us find it difficult to remember people's names. Writing down the names of your neighbors and note about them, such as "Frank and Jill—Bob's neighbor," helps you remember their names. The next time we see Frank and Jill, we try to call them by name.

    ④____

    If you value a friendship with your neighbors, spend time with them. What better way to meet your neighbors than to invite them to a pool party or holiday open house? Chat with each for five minutes to get an idea of what your neighbors are like so that you can plan for food and music.

    ⑤____

    In a good relationship, it's really the little things that count. Help to bring in the mail for the elderly neighbor when there is a heavy rain. When your neighbor forgets to take in his rubbish cans, roll them back into his yard.

阅读下面选文，完成后面问题。

      双腿瘫痪以后，我的脾气变得暴怒无常。望着望着窗外天上北归的雁群，我会突然把面前的玻璃砸碎；听着听着李谷一甜美的歌声，我会猛地把手边的东西摔向四周的墙壁。母亲这时候就悄悄地躲出去，在我看不见的地方偷偷地听着我的动静。当一切恢复沉寂时，她又悄悄地进来，眼边红红的，看着我。“听说北海的花儿都开了，我推着你去走走。”她总是这么说。母亲喜欢花，可自从我瘫痪以后，她侍弄的那些花都死了。“不，我不去！”我狠命地捶打这两条可恨的腿，喊着，“我可活什么劲！”母亲扑过来抓住我的手，忍住哭声说：“咱娘儿俩在一块儿，好好儿活，好好儿活……”

      可我却一直都不知道，她的病已经到了那步田地。后来妹妹告诉我，母亲常常肝疼得整宿整宿翻来覆去地睡不了觉。

      那天我又独自坐在屋里，看着窗外的树叶“唰啦唰啦”地飘落。母亲进来了，挡在窗前：“北海的菊花开了，我推着你去看看吧。”她憔悴的脸上现出央求般的神色。“什么时候？”“你要是愿意，就明天?”她说。我的回答已经让她喜出望外了。“好吧，就明天。”我说。她高兴得一会坐下，一会站起。“那就赶紧准备准备。”“哎呀，烦不烦？几步路，有什么好准备的！”她也笑了，坐在我身边，絮絮叨叨地说着：“看完菊花，咱们就去‘仿膳’，你小时候最爱吃那儿的豌豆黄儿。还记得那回我带你去北海吗？你偏说那杨树花是毛毛虫，跑着，一脚踩扁一个……”她忽然不说了。对于“跑”和“踩”一类的字眼，她比我还敏感。她又悄悄地出去了。

      她出去了，就再也没回来。

      邻居们把她抬上车时，她还在大口大口地吐着鲜血。我没想到她已经病成那样。看着三轮车远去，也绝没有想到那竟是永远的诀别。

      邻居的小伙子背着我去看她的时候，她正艰难地呼吸着，像她那一生艰难的生活。别人告诉我，她昏迷前的最后一句话是：“我那个有病的儿子和我那个还未成年的女儿……”

      又是秋天，妹妹推着我去北海看了菊花。黄色的花淡雅，白色的花高洁，紫红色的花热烈而深沉，泼泼洒洒，秋风中开得正烂漫。我懂得母亲没有说完的话。妹妹也懂。我俩在一块儿，要好好儿活……