Oxford Practice Grammar with answers

Oxford Practice Grammar is for students of English at a middle or 'intermediate' level. This means students who are no longer beginners but who are not yet expert in English. The book is suitable for those studying for the Cambridge First Certificate in English. It can be used by students attending classes or by someone working alone.
What does the book consist of? The book consists of 153 units, each on a grammatical topic. The units cover the main areas of English grammar. Special attention is given to those points which are often a problem for learners:
the meaning of the different verb forms, the use of
the passive, conditionals, prepositions and so on.