Exercise 6. Fill in the blanks with the correct form of the verbs.

1. She ________________ (sing) a beautiful song on stage when the microphone stopped working.

2. He ________________ (study) for three hours last night when his roommate came in and started playing loud music.

3. They were swimming in the ocean all day when they ________________ (see) a school of dolphins.

4. I was finishing my work early today when my boss ________________ (call) me into a meeting.

5. We ________________ (drive) to the mountains for our vacation when we got stuck in traffic.

6. You were cleaning the entire house before the guests ________________ (arrive) when you accidentally broke a vase.

7. The dog ________________ (bark) loudly all night because it heard a noise outside.

8. He was sleeping through the alarm clock this morning when his roommate ________________ (wake) him up.

9. She ________________ (draw) a picture of her family when her little sister spilled juice on it.

10. They ________________ (climb) to the top of the mountain when it started to rain heavily.

Exercise 7. Fill in the blanks with the correct form of the verbs.

1. She ________________ (walk) to the store when it ________________ (start) raining.

2. He ________________ (eat) a sandwich when his phone ________________ (ring).

3. They ________________ (watch) a movie when the power ________________ (go) out.

4. I ________________ (play) soccer with my friends when it ________________ (start) to get dark.

5. We ________________ (visit) a museum when we ________________ (see) a famous painting.

6. You ________________ (call) me while I ________________ (be) in the shower.

7. The cat ________________ (scratch) the couch when I ________________ (yell) at it.

8. He ________________ (write) a letter to his grandmother when he ________________ (run) out of ink.

9. She ________________ (dance) at the party when the DJ suddenly ________________ (stop) the music.

10. They ________________ (buy) a new car when they ________________ (realize) they had forgotten their credit card.