Practice makes prefect
Hi Martin. Here is your next class.
Can / Could / Be able to
http://www.englishclub.com/grammar/verbs-modals_can.htm
Thanks for the information about Geomarketing.
http://en.wikipedia.org/wiki/Geo_(marketing)
ESL Conversation: How to Ask Questions in English
http://video.about.com/esl/ESL–Question-Words-in-English.htm
Improving ESL Learners’ Listening Skills: At the Workplace and Beyond
http://www.cal.org/caela/esl_resources/digests/LISTENQA.html