instruction: Is the next sentence syntactically and semantically acceptable?

Rodney was eating some squid, wasn't he?

response: acceptable

instruction: Is the next sentence syntactically and semantically acceptable?

I ate deep fried muffins.

response: acceptable

instruction: Is the next sentence syntactically and semantically acceptable?

Have in our class the kids arrived safely?

response: unacceptable

instruction: Is the next sentence syntactically and semantically acceptable?

In which box did he put the book?

response:
acceptable