精选优质文档-倾情为你奉上作业一一、 单选题1、- Hello, could I speak to Mike please?- _b_ A:Who are you? B:Who is speaking? C:Whats wrong? D:Why?2、- Is it OK if I take this seat?- Sorry, _c_. A:here you are B:take it C:its taken D:never mind3、Thank you for helping me. _c_. A:Dont thank me B:You are welcome to me C:Not at all D:Im glad to do it4、- How often do you go dancing?- c A:I will go dancing tomorrow.