Q: Valid English sentence (grammatically) or not: This hat I believe that he was wearing.
OPTIONS:
- unacceptable
- acceptable

A: acceptable

Q: Valid English sentence (grammatically) or not: He treats John very badly.
OPTIONS:
- unacceptable
- acceptable

A: acceptable

Q: Valid English sentence (grammatically) or not: I gave a gun to my brother which I had cleaned.
OPTIONS:
- unacceptable
- acceptable

A:
acceptable