UNIT 3 - PRES. PERF. WITH FOR/SINCE/STILL/YET/ALREADY

PRACTICE:

http://www.esl-classroom.com/grammar/presperf1.html

http://www.montsemorales.com/gramatica/PresPerf4E4u-8.htm

http://www.english-area.com/paginas/presentperfect.htm

http://www.englishexercises.org/makeagame/viewgame.asp?id=4433

http://www.englishexercises.org/makeagame/viewgame.asp?id=1394

https://www.curso-ingles.com/practicar/ejercicios/already-just-still-yet

http://www.autoenglish.org/gr.presper.i.htm

UNIT 3 - 1st CONDITIONAL

PRACTICE:

https://www.allthingsgrammar.com/uploads/2/3/2/9/23290220/atg-quiz-firstcon-r1.pdf
http://mbonillo.xavierre.com/exercises/eso2/2esowint09/Firstcond2eso3.htm
http://www.english-4u.de/cond_clauses_ex1.htm
http://mbonillo.xavierre.com/exercises/eso2/2esover09/firstc2e1.htm
http://www.saberingles.com.ar/curso/lesson19/05.html
https://www.ego4u.com/en/cram-up/grammar/conditional-sentences/type-1/exercises
https://www.ego4u.com/en/cram-up/grammar/conditional-sentences/type-1/exercises?02

UNIT 3 - THE ENVIRONMENT

UNIT 3 - FUTURE SIMPLE: WILL

PRACTICE:
http://www.ego4u.com/en/cram-up/grammar/future-1-will/exercises
http://www.saberingles.com.ar/curso/lesson18/06.html
http://www.ompersonal.com.ar/omexercise/tiemposverbales/unit06.htm

UNIT 3 - MONEY & SHOPPING