instruction: Is the next sentence syntactically and semantically acceptable?

The more contented for us to pretend to be became possible, the more angry we grew at the doctors.

response: unacceptable

instruction: Is the next sentence syntactically and semantically acceptable?

I don't really want to go to the dentist's, but I know I should.

response: acceptable

instruction: Is the next sentence syntactically and semantically acceptable?

Who was that Plato loved obvious?

response: unacceptable

instruction: Is the next sentence syntactically and semantically acceptable?

Some of them made as many as 20 errors.

response:
acceptable