MODALS: HAVE TO / HAS TO / MUST / MUSTN'T /SHOULD / SHOULDN'T / NEED TO

LET'S PRACTISE NOW!

• http://www.englisch-hilfen.de/en/grammar/have_to.htm
• http://www.englisch-hilfen.de/en/exercises/tenses/have_to.htm
• http://www.englishexercises.org/makeagame/viewgame.asp?id=8969
• http://www.perfect-english-grammar.com/modal-verbs-of-obligation-exercise-1.html
• http://www.englishpage.com/modals/interactivemodal2.htm
• http://www.english-at-home.com/grammar-modals-obligation/
• https://elt.oup.com/student/solutions/elementary/grammar/grammar_05_022e?cc=global&selLanguage=en
• http://www.englishexercises.org/makeagame/viewgame.asp?id=3023
• http://first-
• english.org/english_learning/english_year_2/must_or_should/40_mustnt_or_shouldnt_exercises.htm