I am a A Level student, if you want to get A1 for 1119, be in mind that you must understand what ang mo wants.

The fundamental skill you need in writing is to be mature and specific. Preferably you write facts rather than fictions. Write facts with concrete evidence, express your opinion very very very maturely.

And i tell you, even if you use very simple english, i mean simple vocab, you can get 1A already. But be sure that you are strong in your grammer. If your grammer suck, gone case...