Level 18 interchange 2

Go to the following link and work on the exercises of unit 1 and  2

http://www.cambridge.org/interchangearcade/

Go to the following link and work on the practice of present perfect tense.

https://es.liveworksheets.com/worksheets/en/English_as_a_Second_Language_(ESL)/Present_perfect/Have_you_ever$_aj5445or

Go to the following link and wok on the practice of past simple.
https://es.liveworksheets.com/worksheets/en/English_as_a_Second_Language_(ESL)/past_simple/Past_simple_tense_dc110kf

Written exam

https://goo.gl/forms/HRJQEY0dQQi9XSJ53

Miscellaneus

Exercise on modal verbs

http://www.english-grammar.at/online_exercises/modal-verbs/m007-evelyn-glennie.htm

Exercises on modal verbs 2

http://www.english-grammar.at/online_exercises/modal-verbs/m008.htm

Exercises on connectors

http://www.english-grammar.at/online_exercises/connectives/con013.htm

Exercises on connectors and linking phrases

http://www.english-grammar.at/online_exercises/connectives/con008-linking-phrases.htm

Exercises on connectors and linking phrases

http://www.english-grammar.at/online_exercises/connectives/con007-linking-words.htm

Exercises on linking phrases

http://www.english-grammar.at/online_exercises/connectives/con004-linking-words.htm