Q: Valid English sentence (grammatically) or not: That Jack ever slept is possible.
OPTIONS:
- unacceptable
- acceptable

A: unacceptable

Q: Valid English sentence (grammatically) or not: John sang a carol.
OPTIONS:
- unacceptable
- acceptable

A: acceptable

Q: Valid English sentence (grammatically) or not: John is more than 6 feet tall.
OPTIONS:
- unacceptable
- acceptable

A:
acceptable