instruction: Is the next sentence syntactically and semantically acceptable?

Proud of him I've never been.

response: acceptable

instruction: Is the next sentence syntactically and semantically acceptable?

Steve tossed the ball into the garden.

response: acceptable

instruction: Is the next sentence syntactically and semantically acceptable?

That Bill loves chocolate is likely.

response: acceptable

instruction: Is the next sentence syntactically and semantically acceptable?

The vacuum cleaner frightens the child.

response:
acceptable