This book was made in Japan for Japanese children learning English as a second language. This book has shown many children, from the age of three years old and above, a very simple way to match English subjects and verbs. This book takes the difficulties of matching subjects and verbs out by introducing a simple number system that is easy to comprehend. The tests are all open book and a dictionary will be required for the last set of tests in the present tense's section. This book shows students how to use "a, an" and "the" in a simple fun way also. This book can be used for age above three. I wish I had a book like this to learn about subjects and verbs. | Subjects and Verbs by Ralph Duncans, Paperback | Indigo Chapters