They (swim) at sea at this time last summer.

She paid the bill while you (talk) to the waiter.

When Mr. Brooks entered the room, his roommate (watch) TV.

While Mehmet (repair) his bicycle in the garden, his mother called him.

Why didn't you listen to your father while he (explain) how to solve the problem?

What you (do) when I saw you in the school garden?

We (not, study) English when my mother came into my room.

Mr. Adams (walk) on the street when the accident happened?