My 2 cents:

Stick to the resources above and u will definitely see ur score improve over a period of time.

SC the key is to check for these things with every question:

1) subject verb agreement
2) Pronoun reference/agreement
3) Parallelism
4) Spotting and extracting idioms


Lot of questions involve a combination of the 4 above. I am sure there may be questions testing miscellaneous concepts like subjunctive, modifiers, comparisons etc... but the 4 above are more prevalent.

CR Bible is good. Once u can spot right answers to each question type in CR using the concepts behind each question type that determine what a right answer should look like, then u r on your way to top critical reasoning also.


Hope this helps and all the very best.

Regards,
CR