1.He opened the window yesterday.
2.They closed the window two hours ago.
3.He cooked fish yesterday.
4.The boys played football yesterday.
5.We stayed in that hotel last year.
6.We travelled around the world 5 years ago.
7.I waited for the doctor.
8.I danced last month.
9.We visited our grandparents yesterday.
10.We watered the flowers yesterday.