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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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