Q: Valid English sentence (grammatically) or not: David constructed a house out of bricks.
OPTIONS:
- unacceptable
- acceptable

A: acceptable

Q: Valid English sentence (grammatically) or not: It is this problem that the sooner you solve the more easily you'll satisfy the folks up at corporate headquarters.
OPTIONS:
- unacceptable
- acceptable

A: acceptable

Q: Valid English sentence (grammatically) or not: John wonders what Mary bought.
OPTIONS:
- unacceptable
- acceptable

A:
acceptable