III. Choose the right forms to complete the sentences. 1. I (watched/ was watching) the film when my parents (came/were coming) in.
2. She (had/ was having) tea at 5 o’clock yesterday.
3. When the storm (began/ was beginning) , Polly (left/ was leaving) the theatre.
4. While Bob (drove/ was driving) home, it (snowed/ was snowing) hard.
5. She (played/ was playing) the piano while he ((did/ was doing) the flat.