Put the right verb in present perfect ( have-has)
1 ----- Learned a lot about computers.
2. We ---- read the story about Google.
3. Larry------ known Sergey since they were at Stanford University.
4. They------ (not) known each other since they were children.
5. It----- been easy for me to learn about computers.
6. You----- used the Internet many times.
7. Larry and Sergey-------- (not) finished their degrees. noun “Google” has become a verb.
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Respuesta:
1 I have
2 have
3 has
4 have not
5 has
6 have
7 have not
Explicación:
La estructura afirmativa del presente perfecto:
Sujeto + Have o Has + Verbo en participio pasado + Complemento
La estructura negativa
Sujeto + Have o Has + NOT + Verbo en participio pasado + Complemento
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