Answers form execise 9/ Respuestas del ejercicio 9

A)

1. Was

2. Were

3. Wasn't

4. Were

5. Weren't

B)

1. No, she wasn't.

2. I was at/in...

3. Yes, they were.

4. Zacharias Janssen was the inventor of the microscope.

5. Carol was in the kitchen in the morning.