Найдите сказуемые и обусловьте их время1)Nancy has cleaned her room today,and

Найдите сказуемые и обусловьте их время
1)Nancy has cleaned her room today,and it looks very nice.
2)We have played this piece of music many times ,so we know it very well now.
3)You have opened the window ,and it is very cold.
4)Jack has iost his texbook,he cannot do his howork now.
5)I have forgotten sophia's telephone number,so i cannot call her.
6)You have written your compositions,so you may go home now.
7)The school has hought new books ?and the teacher will give them to us now.