instruction: Is the next sentence syntactically and semantically acceptable?

Miss Bates can chatter on for hours.

response: acceptable

instruction: Is the next sentence syntactically and semantically acceptable?

Why do you think he left?

response: acceptable

instruction: Is the next sentence syntactically and semantically acceptable?

John might pass the exam, and as might Bill.

response: acceptable

instruction: Is the next sentence syntactically and semantically acceptable?

At most three teachers assigned any homework.

response:
acceptable