2.1
1. was
2. weren't
3. wasn't, was
4. weren't, were
5. was,was
6. was,wasn't
3.1
2. He had a sandwiches for lunch yesterday.
3. She walked to school yesterday.
4. He played his keyboard yesterday.
5. It rained in Exeter.
6. She went to bed at ten yesterday.
7. He saw Ben yesterday.
8. She ran to work yesterday.
9. We left the house at eight o'clock yesterday.
10. He arrived at work at nine yesterday.