2 weeks

working on sentence correction (official guide). I am improving, finished 230 questions.

It's really useful. I have to think about my writing style after finished such amount of sentence correction.

I've noticed some focus points of the SC.

1. Parallelism, in terms of clause, verbs, structure, comparison
2. Idioms, credit with, require that do, ... I should summarize the idioms from the OG.
3. Subject, verb, tense. They should be harmonized.
4. Pronoun, should be clear which object is referred.
5. Concise.