SCIENCES B- SYSTEMS ADMINISTRATION
COUNTABLE- UNCOUNTABLE NOUNS
http://www.englishexercises.org/makeagame/viewgame.asp?id=3246

MEASURE WORDS
http://free-english-study.com/speaking/measure-words.html

SPEAKING
http://free-english-study.com/speaking/speaking-intermediate-level.html


PASSIVE VOICE RULES

http://es.scribd.com/doc/139421910/Passive-Voice-Rule-for-All-Tense-Rules-pdf

EXERCISES

http://www.english-grammar.at/worksheets/passive_voice/pv4.pdf
http://www.learnenglishfeelgood.com/esl-passive-voice-exercise2.html