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Como se pasan estas oraciones a presente perfecto?
1. Betty (copy) all of the new words into her notebook.
2. the men (try) that method several times already.
3. Mr. Smith (travel, never) across the atlantic by plane.
4. the company (increase) its production by twenty percent.
5. Up to now, we (study) almost every lesson in this book.

Pdt: Lo agradeceria mucho, compartan su conocimiento por favor ;)