SAT Practicecf594266-c5ac-414f-abb6-d1d804b6019c
Practice one SAT question at a time
Questions come from the Bluebook question bank.
In Death Valley National Park’s Racetrack Playa, a flat, dry lakebed, are 162 rocks—some weighing less than a pound but others almost 700 pounds—that move periodically from place to place, seemingly of their own volition. Racetrack-like trails in the ______blank mysterious migration.
Which choice completes the text so that it conforms to the conventions of Standard English?