Q: Valid English sentence (grammatically) or not: I hope nobody will hurt themselves.
OPTIONS:
- unacceptable
- acceptable

A: acceptable

Q: Valid English sentence (grammatically) or not: Frank threw himself into the sofa.
OPTIONS:
- unacceptable
- acceptable

A: acceptable

Q: Valid English sentence (grammatically) or not: He looked it up
OPTIONS:
- unacceptable
- acceptable

A:
acceptable