✔ 最佳答案
I refresh my memory of different grammar structures through reading again a grammar book called “Advanced Grammar in use”.
OTHER WAYS OF EXPRESSIONS:
1) I refreshed my memory of different grammar structures by rereading a grammar book called 'Advanced Grammar in use.
2) I freshened up my memory of different grammar structures use by reading over a grammar book called 'Advanced Grammar in use.
3) By reading again a grammar book called 'Advance Grammar in use, it helps me freshen up my memory of different grammar structures use.
* in the above examples, the word CALLED is needed. You can substitute with the word NAMED as well.
* the word REFRESH or FRESHEN at the beginning of the sentence should be used in past-tense, due to the fact that it has happened before and it is not current because you've tried a method to RE-fresh. RE means it happened before and it is happening again.
hope that helps.