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mailxmail - Cursos para compartir lo que sabes



            Ex:
            He had seen the movie twice before she saw it.

            Who had seen the movie twice before...?
            R = he had.
            What had he done twice before she saw it?
            R = he had seen.

            What had he seen twice before she saw it?
            R = the movie.

            How many times had he seen the movie before...?
            R = twice.
            Ex:
            We had been studying maths before he did it.

            Who had been studying maths before...?
            R = we had.

            What had we been doing before...?
            R = we had been studying.

            What had we been studying before...?
            R = maths.


















































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