Which has a mismatch between subject and modifier?
though not the prettiest one at the fair, i was sure my cake was the tastiest.
though it wasn't the prettiest one at the fair, i was sure my cake was the tastiest.
though not the prettiest one at the fair, my cake was the tastiest, i was sure.

new york state wildlife expert richard thomas found that a woodchuck could   chuck around 35 feet of dirt in the course of digging a burrow. thomas reasoned that if a woodchuck could chuck wood, he would chuck an amount equivalent to the weight of the dirt, or 700 pounds.

answer: make the students take turns and express their opinions in 30 second intervals

explanation: in montessori schools we do this in socratic discussions