Just because most of the singaporeans cannot write well, doesnt mean poeple from china also cannot write well. Dun forget, we basically only need to learn 3 subjects when we are in Primary school and one less subject in Secondary school. We are more focused because we dun have to learn Chinese at all. What we learn in China, the very basic is more than what you learn in Singapore.
When we come here, we just study English, while you are doing both subjects. Of course, we pick up English better after that.
Understand?