Respuestas
Respuesta:
2.
Af. She has visited different places.
Neg. She hasn't visited different places.
Int. Has she visited different places?
3. Af. We have been playing football.
Neg. We haven't been playing football.
Int. Have we been playing football?
4. Af. He has studied Biology in the morning.
Neg. He hasn't studied Biology in the morning.
Int. Has he studied Biology in the morning?
Explicación:
El presente perfecto Afirmativo se construye de la siguiente manera:
Sujeto + Have o Has + Verbo en participio pasado + Complemento.
El presente perfecto negativo:
Sujeto + Haven't o Hasn't + Verbo en participio pasado + Complemento.
El presente perfecto interrogativo:
Have o Has + Sujeto + Verbo en participio pasado + Complemento?
El presente perfecto Continuo
Sujeto + Have o Has + BEEN + Verbo con ING + Complemento.