Fill in the blanks with suitable words 1.___There is___ a library next to2.All the students went home.__There aren't any__students in the classroom. 3. ______ 50 states in the United States. 4. No,_______ polar bears at the South Pole. 5. A:_______ a message for me? B: No,______ 6. Why_____ so many cars in the parking lot? 7. A: I'm hungry. B:_______ a restaurant across the street. 8. How many days_______ in March, thirty or thirty-one? 9.____________ a few things I have to do this afternoon. 10. A:_________ a post office nearby? B: I'm sorry, I don't know. 11._________ something I can help you with? 12. No,___________ public holidays next month. 13. How many countries _____ in the world? 14._________ a woman in the picture. She is smiling. 15._______________ only three more days before the exam. Let's study!