Lecture 4: Perfect & Perfect Continuous tenses

http://www.youtube.com/watch?v=l2fPHzkBMok
http://www.slideshare.net/rosarioa.slide/present-perfect-tense

http://www.youtube.com/watch?v=N4pvpBK01HI
http://www.slideshare.net/eddielima/present-perfect-continuous-tense-2496042
http://www.slideshare.net/lupitath09/present-perfect-vs-simple-past

http://www.youtube.com/watch?v=4jcJBi675_M

http://www.slideshare.net/coolmum4u/present-perfect-grammar-guide
http://www.slideshare.net/titxer/past-tenses-past-perfect-past-simple-and-continuous-presentation


Unit 7:

- a good career ahead of her
- GP - general practitioner
- Gates III = the third
- keep racehorses
- sick = adj; ill = adverb