Hi Sam,
While you might be interested in "700 level" questions, it's not clear whether that's what you actually "need" right now. Back in July, 2018, you took the Official GMAT and scored 600. Since that was over 6 months ago, it would help to know more about how you've been studying since then and how you've been scoring on your practice CATs:
1) What type of study routine have you been following since last July? Did you take the GMAT again since then?
2) What study materials have you used so far?
3) How have you scored on EACH of your recent CATs (including the Quant and Verbal Scaled Scores for EACH)? Were any of these CATs ones that you used during your prior studies?
GMAT assassins aren't born, they're made,
Rich