 
                         
                 		Grammar exercise (Ejercicio de gramática)
Exercise No. 2: The Auxiliary Verb: To Be
Exercise No. 3: The Auxiliary Verb: To Be
Exercise No. 4: The Auxiliary Verb: To Be
Exercise No. 5: The Auxiliary Verb: To Be
Exercise No. 6: The Auxiliary Verb: To Be
Exercise No. 7: The Auxiliary Verb: To Be
Exercise No. 8: The Auxiliary Verb: To Be
Exercise No. 9: The Auxiliary Verb: To Be
Exercise No. 10: The Auxiliary Verb: To Be
Exercise No. 11: The Auxiliary Verb: To Be
Exercise No. 12: The Auxiliary Verb: To Be
Exercise No. 13: The Auxiliary Verb: To Be
Exercise No. 14: The Auxiliary Verb: To Be
Exercise No. 15: The Auxiliary Verb: To Be
Exercise No. 16: The Auxiliary Verb: To Be
Exercise No. 17: The Auxiliary Verb: To Be
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Virtual Keyboard
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