https://elt.oup.com/student/petresult/pet/a_grammar/unit07?cc=global&selLanguage=en
Gerunds and Infinitives:
http://www.englishpage.com/gerunds/gerunds_infinitives_1.htm
http://www.ego4u.com/en/cram-up/grammar/infinitive-gerund/exercises?04
http://www.englisch-hilfen.de/en/exercises/structures/gerund_infinitive.htm
Order of adjectives:
http://www.englishexercises.org/makeagame/viewgame.asp?id=6877