toncbs Which part of 'over the 17 countries they studies' does 'going back to 1900' modify? they They went back to 1900 in their studies. ~ They weren't interested in anything older than that.
New words, one handy idiom, and a 2-minute quiz — delivered to your inbox to keep your streak alive.
toncbsWhich part of 'over the 17 countries they studies' does 'going back to 1900' modify?they