martes, 2 de junio de 2015

UNIT 9:

VOCABULARY

GRAMMAR
THE PASSIVE VOICE
SIMPLE PRESENT: exercise 1, exercise 2, exercise 3, exercise 4, exercise 5  
SIMPLE PAST: exercise 1, exercise 2, exercise 3, exercise 4, exercise 5  
MIXED TENSES: exercise 1, exercise 2, exercise 3, exercise 4, exercise 5

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