instruction: Is the next sentence syntactically and semantically acceptable?

The teacher ordered the two boys both to pay close attention.
OPTIONS:
- unacceptable
- acceptable

response: acceptable

instruction: Is the next sentence syntactically and semantically acceptable?

Who has drunk the poison?
OPTIONS:
- unacceptable
- acceptable

response: acceptable

instruction: Is the next sentence syntactically and semantically acceptable?

Ellen and Helen talked.
OPTIONS:
- unacceptable
- acceptable

response: acceptable

instruction: Is the next sentence syntactically and semantically acceptable?

Jessica loaded boxes into the wagon.
OPTIONS:
- unacceptable
- acceptable

response:
acceptable