instruction: Is the next sentence syntactically and semantically acceptable?

The tree dropped its fruit to the ground.
OPTIONS:
- unacceptable
- acceptable

response: acceptable

instruction: Is the next sentence syntactically and semantically acceptable?

I loaned Maggie a Swiss Army knife whose to open the padlock with corkscrew.
OPTIONS:
- unacceptable
- acceptable

response: unacceptable

instruction: Is the next sentence syntactically and semantically acceptable?

She speaks enough clearly to be understood.
OPTIONS:
- unacceptable
- acceptable

response: unacceptable

instruction: Is the next sentence syntactically and semantically acceptable?

The eggs and the cream mixed together.
OPTIONS:
- unacceptable
- acceptable

response:
acceptable