下列各项中,没有语病的一项是(　　)

某商城将一件男式衬衫按进价提高90%标价，然后再按八折出售，这样商城每卖出一件衬衫可盈利60元，设每件衬衫的进价是x元，根据题意列一元一次方程，正确的是（　　）

— Hello! Kangkang! ____.

— Hi, Xiao Lei! I’m going to the post office.

— ____.

— I’m going to send some clothes and books to the students in Wenchuan.

— You’re really warm-hearted. ____.

— No, they can’t. Their school buildings fell down and the government (政府is rebuilding schools for them.

— It’s good news. I hope they can go to school early.

— ____. Oh, what about you? What will you do for the students there to show your love?

— ____.

— Money? That’s good. Shall we go to the post office together?

— Good idea. Let’s go!

获2014“最美乡村教师”、2014“感动中国”年度人物称号的朱敏才、孙丽娜夫妇,9年前,当他们得知贵州山区严重缺乏师资时便决定去义务支教。他们给孩子买来字典,帮助孩子养成良好的卫生习惯。夫妇俩通过上课、游戏和多种课外活动让孩子们逐渐开朗、自信。9年来,两位老人的足迹遍布贵州七八所乡村小学。虽然山村的艰苦条件让他们落下一身疾病,但他们说:“能发挥余热,是我们最大的满足。孩子的变化是我们最大的动力。只要还能爬起来,就会待下去。”