Past Simple or Past Continuous

Yesterday, while I ___________ (study) in the library, my friend visited me.

When the teacher ___________ (ask) me a question, I didn't know the answer.

While I ___________ (walk) to class, it suddenly strated raining.

Last weekend, I attended a fascinating lecture on astronomy, and I ___________ (learn) a lot.

While we ---------- (have) dinner, the phone rang.

When I was a child, I always ___________ (love) to play in the park near my house.

Last summer, my family and I ___________ (go) on a fantastic road trip across the country.

Last Saturday, while was reading a book, my friends ___________ (watch) a movie.

While I ------- (walk) in the park, I met an old friend.

When I traveled to Paris, I ---------- (visit) the Louvre Museum.