用适当的介词填空。 1. What are you going to do your summer holiday? 2. Harbin is the north of hina. 3. Hangzhou is Zhejiang Province. 4. The capital Japan is Tokyo. 5. How will you go to the City Library , foot or by bus? 6. Which river is the longest river the world. 7. He will come to China three days. 8. I usually go to work my bike. 9 . Who will go to the park me? 10 . This is a book many kinds of people.