Q: Valid English sentence (grammatically) or not: I see.
OPTIONS:
- unacceptable
- acceptable

A: acceptable

Q: Valid English sentence (grammatically) or not: I noticed John's excessive appreciation of himself.
OPTIONS:
- unacceptable
- acceptable

A: acceptable

Q: Valid English sentence (grammatically) or not: Do you believe that somebody was looking for something?
OPTIONS:
- unacceptable
- acceptable

A:
acceptable