Respuestas

2013-03-17T00:36:15+01:00

te dejo unos links, para que elijas tu lo que creas adecuado:

 

http://www.studyspanish.com/lessons/presperfect.htm

 

http://web2.uvcs.uvic.ca/elc/studyzone/410/grammar/ppvpast.htm

 

http://www.saberingles.com.ar/curso/lesson21/06.html

 

http://www.autoenglish.org/gr.perf.i.htm

 

http://www.ego4u.com/en/cram-up/grammar/simpas-preper/tests?test3

 

espero que te sirva. saludos

2013-03-17T02:18:50+01:00
Past perfect:

I have been in London.
She has seen the birds.
They have gone to buy some food.
He has read a lot of books.
I have bought some CDs.

Past simple:
Yesterday I was sleeping in my bed.
I saw my teacher in s bar.
He told me He was very bored.
I went to Paris.
He caught the ball.