精选优质文档-倾情为你奉上一、听力二单项填空 (本大题共20小题,每小题1分,共20分)21. - Mary, whos_ woman over there? - Shes my aunt, _ English teacher.A. the; the B. a;the C.the; an D. a; an22. If you work harder, youll have another_ to play the violin at a concert.A. sleep B. chance C. mistake D.problem23. - Is there_ beef in the fridge? - No, there isnt. There is _ pork.A. some; any B. any; any C. some; some D. any; some24