Last week, please advice how to improve verbal !!

Hi everyone,

I'll take 2nd GMAT on the next Friday (Nov 22nd), 1st real attempt scored 610 (Q49 V24) AWA 5.0 IR 8

The PS and DS are the easiest for me. Yet, Verbal stuff quite harm me coz I'm non-native speaker. At this time, my mock exams score around, for Q 50-51, but for V26-35, totally 630-700 (seldom reached 700)

I found that my SC and CR scores is very fluctuating (RC is about 50% correct stably, as I'm non-native speaker, I think it hardly to improve so I left it behind) I need total score at least 660.

Here are my sources I've studied
- OG13 (all question)
- MGMAT SC (review twice), RC (review roughly), 5 Quant, Advance Quant
- Aristotle SC Grail
- PowerScore CR
- MGMAT CAT 1-4 , GMATPrep 1&2
Edited : All of the above had been finished.

For my last week preparation, what should I focus my efforts? or please recommend me which sources of CR and SC I have to look at.
e.g. - re-read my sources
- buy OG2 verbal and go through it (someone recommend me)
- go through CR700-800 or SC1000 or SC brutal Questions

Please advice !! Appreciate in advance !!

PS. I've not recheck my grammar, apology for those.