Bibliography

Bibliography

Brook-Hart, G. 2008. Complete First Certificate. Cambridge: CUP.

Hadfield, J. 2001. Elementary Communication Games. England: Longman.

Hashemi, L. and B. Thomas. 2008. Grammar for First Certificate: Self-study grammar reference and practice. Cambridge: CUP.

Parsalis, J. and N. Stephens. 2009. Access to FCE (Revised Edition) Student's Book. New Editions.

Sinclair, J. (Ed.) (1995). Collins Cobuild English Grammar. The University of Birmingham: Harper Collins Publishers.

Swan, M. (1995/1998). Practical English Usage. Oxford: Oxford University Press.

http://www.ompersonal.com.ar/firstcertificate2/grammar/grammar8.htm

http://www.ompersonal.com.ar/firstcertificate2/grammar/grammar9.htm

http://www.englishclub.com/grammar/verbs-modals.htm