Headway workbook upper-intermediate / 
John , Liz Soars. 
 - New York :  Oxford University Press,  1993. 
 - 94 p. 
<br/><br/> Incluye revision y respuestas. 
<br/><br/>Verb forms.--Presente perfect simple and continuous.--Gerunds and infinitives.--Question forms.--Narrative tenses.--Expressing quantity.--Future forms.--Description.--Modal verbs of deduction.--Expressing habit.--Hypothesis.--Articles 
<br/><br/><label>ISBN: </label>0194335607 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ingles--Enseñanza.
<br/><br/><label>Dewey Class. No.: </label>428  / J64hw