1. I eat sandwich at breakfast.
I am eating at school.
I ate sandwich yesterday.
2. I buy these shoes in store.
I am buying these shoes now.
I bought these shoes last week.
3. I go to the park with my friends.
I am going to the park with my friends now.
I went to the park with my friends last month.
4. I have a shower.
I am having a shower now.
I had a shower two days ago.
5. I read a book.
I am reading a book now.
I read this book last week.