Modal verbs of necessity: must, have to, have got to

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

http://www.tolearnenglish.com/exercises/exercise-english-2/exercise-english-67368.php

http://www.englishgrammarsecrets.com/musthaveto/menu.php

http://www.englishclub.com/grammar/verbs-modals-have-to-must-not-quiz.htm

Use and practice on comparative as...as

http://www.englisch-hilfen.de/en/exercises/adjectives_adverbs/adjectives_comparison_as_as.htm


http://www.mansioningles.com/gram13.htm


For a greater challenge click on the link below:
http://www.1-language.com/englishcoursenew/unit35_grammar.htm

Video - Grammar point: Used to

"Used to"

The following is a website to practise "used to":
http://www.englishgrammarsecrets.com/usedto/menu.php

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