Employment Part 3

Verbs “have to” and “has to”

Video

https://www.youtube.com/watch?v=viOLkYk1QAc

Exercises

http://english-zone.com/verbs/haveto1.html

https://www.englisch-hilfen.de/en/exercises/tenses/have_to.htm

http://www.focus.olsztyn.pl/en-have-to-has-to-exercise.html#.Wni-l7ynFdg

http://www.my-english.edu.pl/index.php?id=52

mustn't/don't have to

Video

https://www.youtube.com/watch?v=wieq4b6obmM

Exercises

http://www.better-english.com/easier/must2.htm

http://www.englishexercises.org/makeagame/viewgame.asp?id=2786

http://web2.uvcs.uvic.ca/courses/elc/studyzone/330/grammar/330-modals-not2.htm

http://www.kico4u.de/english/uebungen/hilfsverben/neghamu.htm

http://web2.uvcs.uvic.ca/courses/elc/studyzone/330/grammar/330-modals-not1.htm

http://www.my-english.edu.pl/index.php?id=51

http://www.esl-lounge.com/student/grammar/2g9-mustnt-dont-have-to-difference.php

Duties

 http://digitalcampus.free.fr/Level2/Unit23/SubUnit233/MatchJobsRequirements01.jmt.htm