听音填空。 1. A: ___________ did they go there? B: They went there by ___________. 2. We ___________ many ___________ at the zoo. 3. A: Did she ______________________ in Xinjiang? B: Yes, and she ___________ some ___________ there. 4. I ______________________on my holiday. 5. We went to Nanjing on ______________________.