Unit 2English around the world第一节单项填空(共15小题;每小题1分,满分15分)从A、B、C、D四个选项中,选出可以填入空白处的最佳选项。21Can I take tomorrow off?_?Do you have something important to do?AWhat for BWhy notCSo what DHow come答案A句意:明天我可以请假吗?为什么?你有要紧事要做吗?What for询问原因,意思是“为什么”,符合语境。Why not?表示赞成,意思是“好啊;为什么不呢”。So what常表示不屑一顾,意思是“那又怎么样呢”。How come表示惊奇、难以置信,意思是“怎么会呢”。22Here is Jacks _ card and you can find his name,picture,date of birth,and other information on it.Asurv