1．—Where shall we go during this holiday, the Great Wall or the West Lake?
—________ It's all the same to me.
A．Enjoy yourself. B．It's a deal.
C．Don't mention it. D．It's up to you.
解析：选D 考查交际用语。由空后的“去哪儿对我来说都一样”可知，答话人是让对方做决定。Enjoy yourself“玩得痛快”；It's a deal“一言为定；成交”；Don't mention it“不客气”。故It's up to you“由你决定”符合题意。
2．The reason ________ he didn't see the film last night is ________ he had to help his little sister with her homework.
A．why; because B．that; why
C．why; that D．that; because
解析：选C 句意：昨晚他没有去看电影的原因是，他得帮助他妹妹做作业。考查The reason why ... is that ...句式，第一空用why引导reason的定语从句，第二空用that引导表语从句。
3．I accepted a ________ teaching students ages 6 to 12 with severe learning and behavioral ________ who'd moved from school to school.
A．position; difficulties B．post; hard
C．job; troubles D．occupation; difficulty
解析：选A 句意：我接受了一个教从这个学校转到那个学校的且具有严重学习困难及行为的六到十二岁的学生们的职位。position与post都表示“职位”的区别：post更强调一份工作，而且使用环境并不十分正式；而position更强调“职位”这不仅仅代表了一个位置、一份工作，同时也带有“负责任的”“职称”等比较正式的隐藏含义，所以第一空填position；difficulty表示具体的“困难”时是可数名词，表示抽象概念“困难”时是不可数名词，题干指“学习和行为困难”，故用复数difficulties。故选A项。
