Change to negative sentences. For example, change "I was nine years old" to "I wasn't nine years old".

1. The grass was green. = The grass green.
2. My school uniform was dirty. = My school uniform dirty.
3. The students were very fast. = The students very fast.
4. It was a funny movie. = It a funny movie.
5. The cows were in the field. = The cows in the field.
6. My shoes were black. = My shoes black.
7. We were at school yesterday. = We at school yesterday.
8. The students were in the computer room. = The students in the computer room.
9. My father was a pilot for ten years. = My father a pilot for ten years.
10. My parents were teachers. = My parents teachers.
11. It was Tuesday yesterday. It Tuesday yesterday.
12. The students were quiet today. The students quiet today.
13. It was a good movie. = It a good movie.
14. The fan was on. The fan on.
15. The lights were on. The lights on.