1. Q043
Blake ____ the school's record for swallowing worms, but he couldn't choke down #87.
The right choice is ...
would of broke
would of broken
would have broke
would have broken
Two problems: Instead of the preposition of, you need the auxiliary verb have. Instead of broke (simple past), you need broken (the past participle).
Of is a preposition. It cannot help form a verb. You need have, the auxiliary (helping) verb.
Broke is, unfortunately, the simple past, a 1-part verb. You need broken, the past participle, since this verb has 3 parts.
Well done! This choice is correctly formed.