tolong ya tentang present perfect tense

1. Have you woken Edwin up?
    No I haven't.
2. Have you reserved cakes for the party?
    Yes, I have.
3. How long has Sita been doing her homework?
    She has been doing her homework for one and a half hours.
4, Have you visited Maya?
    Yes, I have.
5. Mother hasn't prepared our dinner.
    You're right, Father hasn't arrived.

Semoga membantu :D

1. has edwin woken up?
no, he hasn't
2. have you reserved cakes for the party?
yes, i have
3. how long has sita done homework?
she has done her homework one and half hours
4. have you visited maya?
yes, i have
5. mother has not prepared our dinner
you're right. father has not arrived