Choose the correct forms

1. I
   [was cooking|cooked]
   sushi yesterday, but you
   [wasn't coming|didn't come].
2. While I
   [was waiting|waited]
   for you, I
   [was reading|read]
   a book.
3. He
   [was doing|did]
   his homework when the earthquake
   [was starting|started].
4. She
   [was calling|called]
   me to tell that they
   [were losing|lost].
5. I
   [was|was being]
   surprised. They
   [were preparing|prepared]
   a party for my birthday.
6. What
   [did she do|was she doing]
   when you
   [arrived|was arriving]?