https://www.khanacademy.org/humanities/grammar/syntax-sentences-and-clauses/phrases-and-clauses/e/dependent-and-independent-clauses                            You should do all the exercises through this website and then upload your own score.

http://esl.fis.edu/grammar/multi/clauses.htm                             You must do this quiz to know the knowledge that you have learnt.

You need to know all these rules to apply it correctly.

Through this video you should learn about Verb agreement.

https://owl.english.purdue.edu/exercises/5/13/34                           This activity through this website is to practice verb agreement

https://www.ecenglish.com/learnenglish/lessons/subject-verb-agreement-0                           To practice verb agreement.

https://www.quia.com/quiz/281290.html?AP_rand=999878008                              This is a quiz to know your progress in verb agreement section.

To introduce this content see this video to know what parallelism is about.

https://webapps.towson.edu/ows/modulePARALLEL.aspx                             To know better this content visit this website.

http://chompchomp.com/structure01/                             To do this quiz to know your progress.

https://www.khanacademy.org/humanities/grammar/syntax-conventions-of-standard-english/dangling-modifiers-and-parallel-structure/e/parallel-structure                             Final quiz to know your progress.

Leaning about the correct use of the verb.

This activity has the 20 percentage of your whole score.

https://www.education.com/game/subject-verb-agreement-trucks/                               Through this game you will practice the use of the verb.

http://www.softschools.com/manage/themes/knowledgetest2 Quiz of the correct use of the verb   http://utminers.utep.edu/micontreras/Verb%20Tense%20Quiz%201.htm Quiz   https://www.englishgrammar.org/verbs-quiz-2/   Quiz

http://www.butte.edu/departments/cas/tipsheets/grammar/parts_of_speech.html                       Leaning more about the correct use of the part of speech.

https://www.englishclub.com/grammar/parts-of-speech.htm                             practice more about the part of speech.

https://www.englishclub.com/grammar/parts-of-speech-quiz.htm                           Quiz about the part of speech

This is a feedback of the course. (video) http://englishtestprepreview.com/toefl-english-strategies-to-know/toefl-grammar-strategies/735-tips-and-strategies/english-tips-strategies/english-grammar-strategies/1080-13-grammar-rules-to-know         Website about important Grammar strategies.

final test: https://www.examenglish.com/TOEFL/toefl_structure_1.htm                             This test has 20 percent of the whole score.