Q: Valid English sentence (grammatically) or not: The students demonstrated the technique this morning
OPTIONS:
- unacceptable
- acceptable

A: acceptable

Q: Valid English sentence (grammatically) or not: Everyone thinks he is smart.
OPTIONS:
- unacceptable
- acceptable

A: acceptable

Q: Valid English sentence (grammatically) or not: The professor talked us into a stupor.
OPTIONS:
- unacceptable
- acceptable

A:
acceptable