1. We breakfast when the phone rang.
A. had B. were having C. are having D. have
2. Tim Cook called his mother every week even while he around the world.
A. was traveling B. is traveling C. traveled D. travels
3. What you when the captain came in?
A. are; doing B. did; do C. were; doing
4. He a letter when I came in.
A. is writing B. was writing C. wrote D. writes
