1. He (gasped) in horror when she saw the giang mythical creatures
2. She (was driving) along the country road, when a bear came out from the forest
3. Alex stayed at home yesterday evening, because he (had not been finishing) his work.
4. While Sophia (was reading) a book, her cousin (was listening) to jazz.
5. It was the first time that I (had ever seen) the pictures of the famous artists.
6. My sister (had been painting) for six years before she sold her first painting.