UNIVERSIDAD NACIONAL AUTONOMA DE NICARAGUA
UNAN-LEON
GUIA DE LABORATORIO
MIX
Grammar: Past continuous and simple past
1. http://www.ego4u.com/en/cram-up/grammar/simpas-paspro/exercises?ex08
2. http://www.ego4u.com/en/cram-up/grammar/simpas-paspro/exercises?ex07
Grammar: Gerund or Infinitive
3 - http://www.englisch-hilfen.de/en/exercises/structures/gerund_infinitive.htm
4 - http://www.englisch-hilfen.de/en/exercises/structures/gerund_infinitive2.htm
Grammar: Use of for and since in time expressions
5 - http://club.telepolis.com/englishweb/forsince.html
6 - http://www.ego4u.com/en/cram-up/vocabulary/since-for
Grammar (Verb + gerund vs verb + infinitive):
7. http://perso.wanadoo.es/autoenglish/gr.may.i.htm
8. http://www.englisch-hilfen.de/en/exercises/structures/gerund_infinitive2.htm
Grammar Used To
9. http://www.englishgrammarsecrets.com/usedto/exercise1.swf
