I like this grammar test booklet however, it is lacking an answer key! I did not want to purchase the teachers workbook. I just wish there was a separate answer key. I would only recommend this series if you don't mind grading the work based off of your own knowledge or spending the extra money to buy the teacher's book.
Great addition to the workbook. Also purchase the corrilating workbook/answer book. Only problem I had with this is that the Easy Grammar Plus workbook/answer book did not have the answers to the pre-assesment and post-assesment tests(which are the same test); it did however have all the other test answers. Remember to buy Easy Grammar Plus workbook/answer book along with the test book and workbook.