Yesterday at 10am, I _______ (learn) English at school.
was learning
am learning
I _________ (prepare) sandwiches for dinner yesterday at 6pm.
am preparing
was preparing
I _______ (have) fun with my friends at their house when my mother called.
was having
had
I _________ (practice) guitar for hours last Friday.
was practicing
practiced
I _________ (surf) all day long in Cabo San Lucas last summer.
surfed
was surfing