Grammar / Frank Palmer
.Palmer, F. R.
. 2nd ed.Penguin Books
Prepositions / R. A. Close
.Close, R. A.
. (Longman elements of English).Longman
Essential grammar in use : a self-study and practice book for elementary students of English, with answers / Raymond Murphy
.Murphy, Raymond
.Cambridge University Press (CUP)
Oxford practice grammar : with answers / John Eastwood
.Eastwood, John
. 2nd ed.Oxford University Press (OUP)
Discover grammar / David Crystal ; with classroom consultant Geoff Barton
.Crystal, David
.Longman
Grammar and vocabulary for First: and First for schools ; with answers / Barbara Thomas, Louise Hashemi and Laura Matthews
.Thomas, Barbara
;Hashemi, Louise
;Matthews, Laura
.Cambridge University Press (CUP)
