instruction: Is the next sentence syntactically and semantically acceptable?

Nora brought at the book to the meeting.

response: unacceptable

instruction: Is the next sentence syntactically and semantically acceptable?

It started to rain after Jackie and me, we had finally gotten to our seats.

response: unacceptable

instruction: Is the next sentence syntactically and semantically acceptable?

All Mr Collins has done is have praised Lady de Bourg.

response: unacceptable

instruction: Is the next sentence syntactically and semantically acceptable?

He used to go there very often.

response:
acceptable