Did your answer be accepted by the teacher? I don't think I have an answer for you either, so I'd better go to Zero Distance Bookstore to buy the same book … I didn't have an answer in the third grade, and then I bought an identical book myself. There are many books used by students in the third school of Zero Distance Bookstore. Fuzhou Road Zero Distance Bookstore is very close. It's at Hubei Road 192.

May is going to be a sprint ~ Come on ~