Q: Valid English sentence (grammatically) or not: Some sentences can go on and on and on.
OPTIONS:
- unacceptable
- acceptable

A: acceptable

Q: Valid English sentence (grammatically) or not: Any pilot except Sue could be flying this plane.
OPTIONS:
- unacceptable
- acceptable

A: acceptable

Q: Valid English sentence (grammatically) or not: I wonder if she used paints.
OPTIONS:
- unacceptable
- acceptable

A:
acceptable