instruction: Is the next sentence syntactically and semantically acceptable?

Seems John to fix the computer.

response: unacceptable

instruction: Is the next sentence syntactically and semantically acceptable?

The cake was eaten.

response: acceptable

instruction: Is the next sentence syntactically and semantically acceptable?

The more pictures Mary looked at, she got angrier and angrier.

response: unacceptable

instruction: Is the next sentence syntactically and semantically acceptable?

The more people you say will buy tickets, the happier I'll be.

response:
acceptable