2. Grammar: Present perfect + for/since

A- Watch the tutorial about the uses of for or since and do the exercise: http://www.anglaisfacile.com/exercices/exercice-anglais-2/exercice-anglais-10209.php

for Vs since

B- Click on the following links and do the activities:

1- http://www.ecenglish.com/learnenglish/lessons/for-or-since

2- http://a4esl.org/q/h/9807/km-sincefor.html

3- http://web2.uvcs.uvic.ca/elc/studyzone/330/grammar/upperf1.htm

4- http://www.englishmedialab.com/Quizzes/intermediate/since%20for%20last%20ago.htm

5- http://www.usingenglish.com/quizzes/228.html

6- https://www.englishclub.com/grammar/verbs-m_for-since_quiz.htm

7- http://www.aulafacil.com/cursos/l22675/idiomas/ingles/ingles-repaso-de-gramatica/ejercicios-for-since

8- Watch the 6-minute video and click in the grid below the video to play the memory game

http://www.quia.com/cb/305638.html