This book contains an exercise on a theme page (eg simple present), the following is the specific exercises that theme; Vocabulary is this basic, everyday life. Everything is explained very well, even if it is in English but a level A2 (4th-3rd) may include without problem. I highly recommend it to revise its grammar. The best book it. There is a book for next levels B1 - B2 and another for C1 - C2, as well.
