第1个回答 2016-01-07
parents will be the first stage: mathematics. Mathematical guess is the main topic, all of a sudden have to say right answer and must not be stopped, it can be difficult to us, but our efforts, or a customs clearance of an adopted.
Followed by a second stage: English. Can be difficult, but I have been through English classes, I was a "Southern Mr. Guo." In the beginning, as if I have any grudges against them spokesman本回答被网友采纳