Is the following sentence linguistically acceptable?
We have many graduate students but this year the graduate director met with any student in the graduate program individually to discuss their progress.

unacceptable

Is the following sentence linguistically acceptable?
We talked about that our perspectives had changed over the years and the issues we had worked on as students.

unacceptable

Is the following sentence linguistically acceptable?
What Mary donated was a lot of money to NPR.

unacceptable

Is the following sentence linguistically acceptable?
Jane visits Emma.
acceptable