What things i have done i have it is i have i have i was i month week i have

I have done my homework and have leant a lot about oceans and seas.
It's interesting subject.
I have helped my mom cooking for dinner party.
It was great.
I have won the prize.
It was unexpectable.
I have written the letter. I'm happy that I could finish it on time.
I have visited my grandpa this month.
I have gone to the cinema this week.
I have read the book today.
I have already cooked the pie.