Your three official scores reveal something important: your primary issue does not appear to be a broad lack of GMAT knowledge. You have demonstrated Q88, V83, and DI84 ability, but not during the same exam. Reaching 705+ will require you to produce a more consistent performance across all three sections.
The clearest weakness is CR. At 50 to 55 percent accuracy, CR is likely placing a significant ceiling on your Verbal score. With one week remaining, completing a broad Verbal review may not be enough. Focus specifically on the CR question types and reasoning errors that are costing you points.
For every CR question, identify the argument’s structure and the exact task. For assumption-based questions, determine the logical gap. For inference questions, identify what must be true based only on the information provided. When you miss a question, determine whether you misunderstood the argument, performed the wrong task, or selected an attractive answer that did not actually answer the question. Begin with careful, untimed practice and transition to small timed sets once your accuracy improves.
Regarding Quant, Q88 shows that you are already strong, and you do not necessarily need Q90 to score 705+. Classify every careless mistake. Are you misreading the question, overlooking a restriction, making an arithmetic error, or rushing because of pacing? Identify the recurring pattern and create a short verification routine to use before submitting each answer.
For DI, compare your performances by question type rather than assuming that your overall DI ability declined. The drop from DI84 to DI77 could have resulted from timing problems, a difficult mix of question types, or a few errors that caused you to rush later in the section. Determine which question types consume too much time and which produce the most errors. Your priority is to finish the section without allowing one difficult question to create a sequence of rushed decisions.
I also would not put much stock in scores from official mock retakes if you remembered any questions or solutions. Use those exams to rehearse pacing, but not as precise indicators of your current scoring level. At this point, targeted work on CR, DI timing, and your recurring Quant errors will be more valuable than repeatedly taking full-length tests.
A 665 is already a strong score, but moving to 705+ is a meaningful jump. Your best opportunity is to make your existing ability more reliable under pressure. If your CR accuracy remains around 50 to 55 percent or your DI timing is still unstable a few days before the exam, consider rescheduling if doing so is feasible. You want your final attempt to reflect your true ability, not simply your understandable desire to be finished with the GMAT.
Good luck!
Scott, TTP