I have bought the ultimate guide grammar book which was known to be the best grammer book. Did the questions asked change? Did they introduce new types of errors.
Any help would be appreciated.
If you bought the old ultimate guide I would suggest returning it. There’s new stuff that CB is testing like punctuation e, not to mention the layout of the questions is much more different. Might as well buy the new version (3rd edition) so you have everything covered.
If you bought the 3rd edition book, you should be fine with that. If you bought the 2nd edition you should return it and buy the 3rd as @NotBadNotGood said.