instruction: Is the next sentence syntactically and semantically acceptable?

The more contented we pretended to be, the more we grew angry at the doctors.

response: acceptable

instruction: Is the next sentence syntactically and semantically acceptable?

John couldn't leave the party.

response: acceptable

instruction: Is the next sentence syntactically and semantically acceptable?

When Dr Jones died of apoplexy didn't he, Mary Crawford went to live with his wife.

response: unacceptable

instruction: Is the next sentence syntactically and semantically acceptable?

It is raining in San Francisco.

response:
acceptable