instruction: Is the next sentence syntactically and semantically acceptable?

He looks so much formidable.

response: unacceptable

instruction: Is the next sentence syntactically and semantically acceptable?

He talked to a girl about swimming.

response: acceptable

instruction: Is the next sentence syntactically and semantically acceptable?

The car will have been being driven.

response: acceptable

instruction: Is the next sentence syntactically and semantically acceptable?

Has Bill eaten his tuna?

response:
acceptable