Chapter 10

Types of sentences

https://www.ucl.ac.uk/internet-grammar/clauses/ex5.htm (solo el pag 1,4,5)

http://www.eslbee.com/sentences.htm

http://homepage.smc.edu/Morgan_Julia/sentence_types_exercises.htm

http://www.writingcentre.uottawa.ca/hypergrammar/rvsntstr.html